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Finding the Fourth Proportional to 424,988.52, 637,599.20 and 125,469

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Solution

The fourth proportional to 424,988.52, 637,599.20 and 125,469 is: 188,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,988.52 : 637,599.20 = 125,469 : x
  2. Step 2: Convert to fraction form
    424,988.52/637,599.20 = 125,469/x
  3. Step 3: Cross multiply
    424,988.52x = 637,599.20 × 125,469
  4. Step 4: Simplify right side
    424,988.52x = 79,998,933,397.46
  5. Step 5: Solve for x
    x = 79,998,933,397.46/424,988.52
  6. Step 6: Final answer
    x = 188,237.87

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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.