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Finding the Fourth Proportional to 92,489.20, 138,733.86 and 22,368.58

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Solution

The fourth proportional to 92,489.20, 138,733.86 and 22,368.58 is: 33,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,489.20 : 138,733.86 = 22,368.58 : x
  2. Step 2: Convert to fraction form
    92,489.20/138,733.86 = 22,368.58/x
  3. Step 3: Cross multiply
    92,489.20x = 138,733.86 × 22,368.58
  4. Step 4: Simplify right side
    92,489.20x = 3,103,279,183.17
  5. Step 5: Solve for x
    x = 3,103,279,183.17/92,489.20
  6. Step 6: Final answer
    x = 33,552.88

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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.