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Finding the Fourth Proportional to 99,745.48, 137,524.26 and 63,876.52

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Solution

The fourth proportional to 99,745.48, 137,524.26 and 63,876.52 is: 88,069.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,745.48 : 137,524.26 = 63,876.52 : x
  2. Step 2: Convert to fraction form
    99,745.48/137,524.26 = 63,876.52/x
  3. Step 3: Cross multiply
    99,745.48x = 137,524.26 × 63,876.52
  4. Step 4: Simplify right side
    99,745.48x = 8,784,571,144.38
  5. Step 5: Solve for x
    x = 8,784,571,144.38/99,745.48
  6. Step 6: Final answer
    x = 88,069.87

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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.