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Finding the Fourth Proportional to 79,502.52, 109,715.94 and 43,691.88

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Solution

The fourth proportional to 79,502.52, 109,715.94 and 43,691.88 is: 60,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,502.52 : 109,715.94 = 43,691.88 : x
  2. Step 2: Convert to fraction form
    79,502.52/109,715.94 = 43,691.88/x
  3. Step 3: Cross multiply
    79,502.52x = 109,715.94 × 43,691.88
  4. Step 4: Simplify right side
    79,502.52x = 4,793,695,684.57
  5. Step 5: Solve for x
    x = 4,793,695,684.57/79,502.52
  6. Step 6: Final answer
    x = 60,296.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.