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Finding the Fourth Proportional to 231,542.94, 347,355.72 and 81,870.13

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Solution

The fourth proportional to 231,542.94, 347,355.72 and 81,870.13 is: 122,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,542.94 : 347,355.72 = 81,870.13 : x
  2. Step 2: Convert to fraction form
    231,542.94/347,355.72 = 81,870.13/x
  3. Step 3: Cross multiply
    231,542.94x = 347,355.72 × 81,870.13
  4. Step 4: Simplify right side
    231,542.94x = 28,438,057,952.64
  5. Step 5: Solve for x
    x = 28,438,057,952.64/231,542.94
  6. Step 6: Final answer
    x = 122,819.80

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