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Finding the Fourth Proportional to 88,450.80, 132,311.70 and 80,665.08

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Solution

The fourth proportional to 88,450.80, 132,311.70 and 80,665.08 is: 120,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,450.80 : 132,311.70 = 80,665.08 : x
  2. Step 2: Convert to fraction form
    88,450.80/132,311.70 = 80,665.08/x
  3. Step 3: Cross multiply
    88,450.80x = 132,311.70 × 80,665.08
  4. Step 4: Simplify right side
    88,450.80x = 10,672,933,865.44
  5. Step 5: Solve for x
    x = 10,672,933,865.44/88,450.80
  6. Step 6: Final answer
    x = 120,665.20

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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.