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Finding the Fourth Proportional to 79,545.43, 109,773.80 and 43,736.95

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Solution

The fourth proportional to 79,545.43, 109,773.80 and 43,736.95 is: 60,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,545.43 : 109,773.80 = 43,736.95 : x
  2. Step 2: Convert to fraction form
    79,545.43/109,773.80 = 43,736.95/x
  3. Step 3: Cross multiply
    79,545.43x = 109,773.80 × 43,736.95
  4. Step 4: Simplify right side
    79,545.43x = 4,801,171,201.91
  5. Step 5: Solve for x
    x = 4,801,171,201.91/79,545.43
  6. Step 6: Final answer
    x = 60,357.60

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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.