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Finding the Fourth Proportional to 224,498.70, 336,747.65 and 91,349.28

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Solution

The fourth proportional to 224,498.70, 336,747.65 and 91,349.28 is: 137,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,498.70 : 336,747.65 = 91,349.28 : x
  2. Step 2: Convert to fraction form
    224,498.70/336,747.65 = 91,349.28/x
  3. Step 3: Cross multiply
    224,498.70x = 336,747.65 × 91,349.28
  4. Step 4: Simplify right side
    224,498.70x = 30,761,654,912.45
  5. Step 5: Solve for x
    x = 30,761,654,912.45/224,498.70
  6. Step 6: Final answer
    x = 137,023.76

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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.