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Finding the Fourth Proportional to 424,032.17, 636,045.02 and 108,488.57

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Solution

The fourth proportional to 424,032.17, 636,045.02 and 108,488.57 is: 162,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,032.17 : 636,045.02 = 108,488.57 : x
  2. Step 2: Convert to fraction form
    424,032.17/636,045.02 = 108,488.57/x
  3. Step 3: Cross multiply
    424,032.17x = 636,045.02 × 108,488.57
  4. Step 4: Simplify right side
    424,032.17x = 69,003,614,132.98
  5. Step 5: Solve for x
    x = 69,003,614,132.98/424,032.17
  6. Step 6: Final answer
    x = 162,732.03

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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.