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Finding the Fourth Proportional to 96,398.80, 144,598.20 and 86,581.60

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Solution

The fourth proportional to 96,398.80, 144,598.20 and 86,581.60 is: 129,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,398.80 : 144,598.20 = 86,581.60 : x
  2. Step 2: Convert to fraction form
    96,398.80/144,598.20 = 86,581.60/x
  3. Step 3: Cross multiply
    96,398.80x = 144,598.20 × 86,581.60
  4. Step 4: Simplify right side
    96,398.80x = 12,519,543,513.12
  5. Step 5: Solve for x
    x = 12,519,543,513.12/96,398.80
  6. Step 6: Final answer
    x = 129,872.40

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