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Finding the Fourth Proportional to 71,963.46, 99,321.57 and 41,773.86

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Solution

The fourth proportional to 71,963.46, 99,321.57 and 41,773.86 is: 57,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963.46 : 99,321.57 = 41,773.86 : x
  2. Step 2: Convert to fraction form
    71,963.46/99,321.57 = 41,773.86/x
  3. Step 3: Cross multiply
    71,963.46x = 99,321.57 × 41,773.86
  4. Step 4: Simplify right side
    71,963.46x = 4,149,045,360.16
  5. Step 5: Solve for x
    x = 4,149,045,360.16/71,963.46
  6. Step 6: Final answer
    x = 57,654.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.