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Finding the Fourth Proportional to 424,097.52, 636,145.88 and 108,553.92

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Solution

The fourth proportional to 424,097.52, 636,145.88 and 108,553.92 is: 162,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,097.52 : 636,145.88 = 108,553.92 : x
  2. Step 2: Convert to fraction form
    424,097.52/636,145.88 = 108,553.92/x
  3. Step 3: Cross multiply
    424,097.52x = 636,145.88 × 108,553.92
  4. Step 4: Simplify right side
    424,097.52x = 69,056,128,965.85
  5. Step 5: Solve for x
    x = 69,056,128,965.85/424,097.52
  6. Step 6: Final answer
    x = 162,830.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.