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Finding the Fourth Proportional to 322,469.28, 483,791.40 and 112,123.62

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Solution

The fourth proportional to 322,469.28, 483,791.40 and 112,123.62 is: 168,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,469.28 : 483,791.40 = 112,123.62 : x
  2. Step 2: Convert to fraction form
    322,469.28/483,791.40 = 112,123.62/x
  3. Step 3: Cross multiply
    322,469.28x = 483,791.40 × 112,123.62
  4. Step 4: Simplify right side
    322,469.28x = 54,244,443,092.87
  5. Step 5: Solve for x
    x = 54,244,443,092.87/322,469.28
  6. Step 6: Final answer
    x = 168,215.85

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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.