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Finding the Fourth Proportional to 332,410.80, 498,470.40 and 132,664.80

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Solution

The fourth proportional to 332,410.80, 498,470.40 and 132,664.80 is: 198,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,410.80 : 498,470.40 = 132,664.80 : x
  2. Step 2: Convert to fraction form
    332,410.80/498,470.40 = 132,664.80/x
  3. Step 3: Cross multiply
    332,410.80x = 498,470.40 × 132,664.80
  4. Step 4: Simplify right side
    332,410.80x = 66,129,475,921.92
  5. Step 5: Solve for x
    x = 66,129,475,921.92/332,410.80
  6. Step 6: Final answer
    x = 198,939.01

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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.