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Finding the Fourth Proportional to 424,101.53, 636,151.89 and 108,557.93

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Solution

The fourth proportional to 424,101.53, 636,151.89 and 108,557.93 is: 162,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,101.53 : 636,151.89 = 108,557.93 : x
  2. Step 2: Convert to fraction form
    424,101.53/636,151.89 = 108,557.93/x
  3. Step 3: Cross multiply
    424,101.53x = 636,151.89 × 108,557.93
  4. Step 4: Simplify right side
    424,101.53x = 69,059,332,343.99
  5. Step 5: Solve for x
    x = 69,059,332,343.99/424,101.53
  6. Step 6: Final answer
    x = 162,836.79

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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.