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Finding the Fourth Proportional to 108,001.80, 161,929.80 and 57,409.20

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Solution

The fourth proportional to 108,001.80, 161,929.80 and 57,409.20 is: 86,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,001.80 : 161,929.80 = 57,409.20 : x
  2. Step 2: Convert to fraction form
    108,001.80/161,929.80 = 57,409.20/x
  3. Step 3: Cross multiply
    108,001.80x = 161,929.80 × 57,409.20
  4. Step 4: Simplify right side
    108,001.80x = 9,296,260,274.16
  5. Step 5: Solve for x
    x = 9,296,260,274.16/108,001.80
  6. Step 6: Final answer
    x = 86,075.05

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