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Finding the Fourth Proportional to 396,722.78, 595,084.20 and 101,234.78

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Solution

The fourth proportional to 396,722.78, 595,084.20 and 101,234.78 is: 151,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,722.78 : 595,084.20 = 101,234.78 : x
  2. Step 2: Convert to fraction form
    396,722.78/595,084.20 = 101,234.78/x
  3. Step 3: Cross multiply
    396,722.78x = 595,084.20 × 101,234.78
  4. Step 4: Simplify right side
    396,722.78x = 60,243,218,068.48
  5. Step 5: Solve for x
    x = 60,243,218,068.48/396,722.78
  6. Step 6: Final answer
    x = 151,852.18

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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.