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Finding the Fourth Proportional to 198,354.40, 273,728.76 and 108,930.40

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Solution

The fourth proportional to 198,354.40, 273,728.76 and 108,930.40 is: 150,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,354.40 : 273,728.76 = 108,930.40 : x
  2. Step 2: Convert to fraction form
    198,354.40/273,728.76 = 108,930.40/x
  3. Step 3: Cross multiply
    198,354.40x = 273,728.76 × 108,930.40
  4. Step 4: Simplify right side
    198,354.40x = 29,817,383,318.30
  5. Step 5: Solve for x
    x = 29,817,383,318.30/198,354.40
  6. Step 6: Final answer
    x = 150,323.78

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