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Finding the Fourth Proportional to 424,100.92, 636,136.80 and 108,560.56

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Solution

The fourth proportional to 424,100.92, 636,136.80 and 108,560.56 is: 162,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,100.92 : 636,136.80 = 108,560.56 : x
  2. Step 2: Convert to fraction form
    424,100.92/636,136.80 = 108,560.56/x
  3. Step 3: Cross multiply
    424,100.92x = 636,136.80 × 108,560.56
  4. Step 4: Simplify right side
    424,100.92x = 69,059,367,244.61
  5. Step 5: Solve for x
    x = 69,059,367,244.61/424,100.92
  6. Step 6: Final answer
    x = 162,837.11

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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.