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Finding the Fourth Proportional to 79,251.95, 109,367.16 and 43,443.47

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Solution

The fourth proportional to 79,251.95, 109,367.16 and 43,443.47 is: 59,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,251.95 : 109,367.16 = 43,443.47 : x
  2. Step 2: Convert to fraction form
    79,251.95/109,367.16 = 43,443.47/x
  3. Step 3: Cross multiply
    79,251.95x = 109,367.16 × 43,443.47
  4. Step 4: Simplify right side
    79,251.95x = 4,751,288,387.61
  5. Step 5: Solve for x
    x = 4,751,288,387.61/79,251.95
  6. Step 6: Final answer
    x = 59,951.69

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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.