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Allison is 33 years old and plans to retire at age 65 with \( \$ 1,190,000 \) in her retirement account. What amount would she have to set aside now in an investment paying \( 7 \% \) annual interest if the compounding is done daily (assume 365 days in a year)? The amount to be invested now is \( \$ \square \). (Round to the nearest cent as needed.)

Ask by Bartlett Joseph. in the United States
Feb 27,2025

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Allison needs to invest approximately \$126,680.67 now to reach her retirement goal.

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To find out how much Allison needs to set aside now to reach her retirement goal, we can use the formula for the present value of a future amount when compounding daily: \[ PV = \frac{FV}{(1 + \frac{r}{n})^{nt}} \] Where: - \(FV\) = future value (\$1,190,000) - \(r\) = annual interest rate (0.07) - \(n\) = number of compounding periods per year (365) - \(t\) = number of years until retirement (65 - 33 = 32 years) Substituting the values into the formula: \[ PV = \frac{1,190,000}{(1 + \frac{0.07}{365})^{365 \times 32}} \] Calculating further: 1. \(r/n = 0.07/365 \approx 0.00019178\) 2. \(nt = 365 \times 32 = 11,680\) 3. Calculate \((1 + 0.00019178)^{11,680}\) Using a scientific calculator or software to compute this: \[ (1 + 0.00019178)^{11,680} \approx 7.5072 \] Now substitute back into the PV formula: \[ PV = \frac{1,190,000}{7.5072} \approx 158,248.98 \] Thus, the amount to be invested now is approximately \( \$158,248.98 \).

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