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Finding the Fourth Proportional to 85,976.32, 118,658.26 and 48,250.57

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Solution

The fourth proportional to 85,976.32, 118,658.26 and 48,250.57 is: 66,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,976.32 : 118,658.26 = 48,250.57 : x
  2. Step 2: Convert to fraction form
    85,976.32/118,658.26 = 48,250.57/x
  3. Step 3: Cross multiply
    85,976.32x = 118,658.26 × 48,250.57
  4. Step 4: Simplify right side
    85,976.32x = 5,725,328,086.92
  5. Step 5: Solve for x
    x = 5,725,328,086.92/85,976.32
  6. Step 6: Final answer
    x = 66,591.92

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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.