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Finding the Fourth Proportional to 435,456.56, 653,188.08 and 119,930.78

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Solution

The fourth proportional to 435,456.56, 653,188.08 and 119,930.78 is: 179,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,456.56 : 653,188.08 = 119,930.78 : x
  2. Step 2: Convert to fraction form
    435,456.56/653,188.08 = 119,930.78/x
  3. Step 3: Cross multiply
    435,456.56x = 653,188.08 × 119,930.78
  4. Step 4: Simplify right side
    435,456.56x = 78,337,355,921.10
  5. Step 5: Solve for x
    x = 78,337,355,921.10/435,456.56
  6. Step 6: Final answer
    x = 179,897.06

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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.