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Finding the Fourth Proportional to 332,407.80, 498,465.90 and 132,661.80

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Solution

The fourth proportional to 332,407.80, 498,465.90 and 132,661.80 is: 198,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,407.80 : 498,465.90 = 132,661.80 : x
  2. Step 2: Convert to fraction form
    332,407.80/498,465.90 = 132,661.80/x
  3. Step 3: Cross multiply
    332,407.80x = 498,465.90 × 132,661.80
  4. Step 4: Simplify right side
    332,407.80x = 66,127,383,532.62
  5. Step 5: Solve for x
    x = 66,127,383,532.62/332,407.80
  6. Step 6: Final answer
    x = 198,934.51

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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.