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Finding the Fourth Proportional to 332,480.40, 498,785.40 and 132,766.80

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Solution

The fourth proportional to 332,480.40, 498,785.40 and 132,766.80 is: 199,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,480.40 : 498,785.40 = 132,766.80 : x
  2. Step 2: Convert to fraction form
    332,480.40/498,785.40 = 132,766.80/x
  3. Step 3: Cross multiply
    332,480.40x = 498,785.40 × 132,766.80
  4. Step 4: Simplify right side
    332,480.40x = 66,222,141,444.72
  5. Step 5: Solve for x
    x = 66,222,141,444.72/332,480.40
  6. Step 6: Final answer
    x = 199,176.08

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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.