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Finding the Fourth Proportional to 396,721.78, 595,082.70 and 101,233.78

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Solution

The fourth proportional to 396,721.78, 595,082.70 and 101,233.78 is: 151,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,721.78 : 595,082.70 = 101,233.78 : x
  2. Step 2: Convert to fraction form
    396,721.78/595,082.70 = 101,233.78/x
  3. Step 3: Cross multiply
    396,721.78x = 595,082.70 × 101,233.78
  4. Step 4: Simplify right side
    396,721.78x = 60,242,471,133.61
  5. Step 5: Solve for x
    x = 60,242,471,133.61/396,721.78
  6. Step 6: Final answer
    x = 151,850.68

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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.