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Finding the Fourth Proportional to 54,963.10, 82,444.65 and 43,687.90

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Solution

The fourth proportional to 54,963.10, 82,444.65 and 43,687.90 is: 65,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,963.10 : 82,444.65 = 43,687.90 : x
  2. Step 2: Convert to fraction form
    54,963.10/82,444.65 = 43,687.90/x
  3. Step 3: Cross multiply
    54,963.10x = 82,444.65 × 43,687.90
  4. Step 4: Simplify right side
    54,963.10x = 3,601,833,624.74
  5. Step 5: Solve for x
    x = 3,601,833,624.74/54,963.10
  6. Step 6: Final answer
    x = 65,531.85

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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.