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Finding the Fourth Proportional to 88,523.80, 132,591.30 and 76,859.80

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Solution

The fourth proportional to 88,523.80, 132,591.30 and 76,859.80 is: 115,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,523.80 : 132,591.30 = 76,859.80 : x
  2. Step 2: Convert to fraction form
    88,523.80/132,591.30 = 76,859.80/x
  3. Step 3: Cross multiply
    88,523.80x = 132,591.30 × 76,859.80
  4. Step 4: Simplify right side
    88,523.80x = 10,190,940,799.74
  5. Step 5: Solve for x
    x = 10,190,940,799.74/88,523.80
  6. Step 6: Final answer
    x = 115,120.91

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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.