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Finding the Fourth Proportional to 73,863.91, 110,819.17 and 56,179.28

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Solution

The fourth proportional to 73,863.91, 110,819.17 and 56,179.28 is: 84,286.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,863.91 : 110,819.17 = 56,179.28 : x
  2. Step 2: Convert to fraction form
    73,863.91/110,819.17 = 56,179.28/x
  3. Step 3: Cross multiply
    73,863.91x = 110,819.17 × 56,179.28
  4. Step 4: Simplify right side
    73,863.91x = 6,225,741,180.80
  5. Step 5: Solve for x
    x = 6,225,741,180.80/73,863.91
  6. Step 6: Final answer
    x = 84,286.65

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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.