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Finding the Fourth Proportional to 424,740.56, 637,214.52 and 129,252.56

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Solution

The fourth proportional to 424,740.56, 637,214.52 and 129,252.56 is: 193,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,740.56 : 637,214.52 = 129,252.56 : x
  2. Step 2: Convert to fraction form
    424,740.56/637,214.52 = 129,252.56/x
  3. Step 3: Cross multiply
    424,740.56x = 637,214.52 × 129,252.56
  4. Step 4: Simplify right side
    424,740.56x = 82,361,607,979.17
  5. Step 5: Solve for x
    x = 82,361,607,979.17/424,740.56
  6. Step 6: Final answer
    x = 193,910.39

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