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Finding the Fourth Proportional to 332,081.20, 498,121.80 and 132,432.40

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Solution

The fourth proportional to 332,081.20, 498,121.80 and 132,432.40 is: 198,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,081.20 : 498,121.80 = 132,432.40 : x
  2. Step 2: Convert to fraction form
    332,081.20/498,121.80 = 132,432.40/x
  3. Step 3: Cross multiply
    332,081.20x = 498,121.80 × 132,432.40
  4. Step 4: Simplify right side
    332,081.20x = 65,967,465,466.32
  5. Step 5: Solve for x
    x = 65,967,465,466.32/332,081.20
  6. Step 6: Final answer
    x = 198,648.60

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1.5x scale

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.