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Finding the Fourth Proportional to 54,248.40, 81,372.60 and 44,917.20

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Solution

The fourth proportional to 54,248.40, 81,372.60 and 44,917.20 is: 67,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,248.40 : 81,372.60 = 44,917.20 : x
  2. Step 2: Convert to fraction form
    54,248.40/81,372.60 = 44,917.20/x
  3. Step 3: Cross multiply
    54,248.40x = 81,372.60 × 44,917.20
  4. Step 4: Simplify right side
    54,248.40x = 3,655,029,348.72
  5. Step 5: Solve for x
    x = 3,655,029,348.72/54,248.40
  6. Step 6: Final answer
    x = 67,375.80

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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.