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Finding the Fourth Proportional to 104,184.75, 156,360.92 and 54,279.75

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Solution

The fourth proportional to 104,184.75, 156,360.92 and 54,279.75 is: 81,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,184.75 : 156,360.92 = 54,279.75 : x
  2. Step 2: Convert to fraction form
    104,184.75/156,360.92 = 54,279.75/x
  3. Step 3: Cross multiply
    104,184.75x = 156,360.92 × 54,279.75
  4. Step 4: Simplify right side
    104,184.75x = 8,487,231,375.97
  5. Step 5: Solve for x
    x = 8,487,231,375.97/104,184.75
  6. Step 6: Final answer
    x = 81,463.28

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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.