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Finding the Fourth Proportional to 74,791.60, 112,163.10 and 24,863.20

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Solution

The fourth proportional to 74,791.60, 112,163.10 and 24,863.20 is: 37,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.60 : 112,163.10 = 24,863.20 : x
  2. Step 2: Convert to fraction form
    74,791.60/112,163.10 = 24,863.20/x
  3. Step 3: Cross multiply
    74,791.60x = 112,163.10 × 24,863.20
  4. Step 4: Simplify right side
    74,791.60x = 2,788,733,587.92
  5. Step 5: Solve for x
    x = 2,788,733,587.92/74,791.60
  6. Step 6: Final answer
    x = 37,286.72

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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.