Imprudential, Incorporated, has an unfunded pension liability of $450 million that must be paid in 20 years. To assess the value of the firm's stock, financial analysts want to discount this liability back to the present. If the relevant discount rate is 5.2 percent, what is the present value of this liability? \begin{tabular}{l} Present value \\ Solve for the interest rate in each of the following using Excel: \\ \hline \end{tabular}