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Finding the Fourth Proportional to 424,951.20, 637,363.62 and 158,678.28

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Solution

The fourth proportional to 424,951.20, 637,363.62 and 158,678.28 is: 237,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,951.20 : 637,363.62 = 158,678.28 : x
  2. Step 2: Convert to fraction form
    424,951.20/637,363.62 = 158,678.28/x
  3. Step 3: Cross multiply
    424,951.20x = 637,363.62 × 158,678.28
  4. Step 4: Simplify right side
    424,951.20x = 101,135,762,956.17
  5. Step 5: Solve for x
    x = 101,135,762,956.17/424,951.20
  6. Step 6: Final answer
    x = 237,993.83

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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.