Information on four investment proposals is given below: Investment Proposal A B C D Investment required $ (120,000) $ (50,000) $ (50,000) $ (360,000) Present value of cash inflows 169,200 67,300 79,000 476,000 Net present value $ 49,200 $ 17,300 $ 29,000 $ 116,000 Life of the project 5 years 7 years 6 years 6 years Required: Compute the profitability index for each investment proposal. Note: Round your answers to 2 decimal places. Rank the proposals in terms of preference.