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Finding the Fourth Proportional to 332,080.70, 498,121.05 and 132,431.90

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Solution

The fourth proportional to 332,080.70, 498,121.05 and 132,431.90 is: 198,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,080.70 : 498,121.05 = 132,431.90 : x
  2. Step 2: Convert to fraction form
    332,080.70/498,121.05 = 132,431.90/x
  3. Step 3: Cross multiply
    332,080.70x = 498,121.05 × 132,431.90
  4. Step 4: Simplify right side
    332,080.70x = 65,967,117,081.50
  5. Step 5: Solve for x
    x = 65,967,117,081.50/332,080.70
  6. Step 6: Final answer
    x = 198,647.85

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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.