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Finding the Fourth Proportional to 141,793.56, 212,691.12 and 36,605.28

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Solution

The fourth proportional to 141,793.56, 212,691.12 and 36,605.28 is: 54,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793.56 : 212,691.12 = 36,605.28 : x
  2. Step 2: Convert to fraction form
    141,793.56/212,691.12 = 36,605.28/x
  3. Step 3: Cross multiply
    141,793.56x = 212,691.12 × 36,605.28
  4. Step 4: Simplify right side
    141,793.56x = 7,785,618,001.11
  5. Step 5: Solve for x
    x = 7,785,618,001.11/141,793.56
  6. Step 6: Final answer
    x = 54,908.12

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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.