An investment will pay $20,000 at the end of the first year, $30,000 at the end of the second year, and $50,000 at the end of the third year. (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided.) Determine the present value of this investment using a 10 percent interest rate.