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Finding the Fourth Proportional to 332,495.40, 498,807.90 and 132,781.80

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Solution

The fourth proportional to 332,495.40, 498,807.90 and 132,781.80 is: 199,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,495.40 : 498,807.90 = 132,781.80 : x
  2. Step 2: Convert to fraction form
    332,495.40/498,807.90 = 132,781.80/x
  3. Step 3: Cross multiply
    332,495.40x = 498,807.90 × 132,781.80
  4. Step 4: Simplify right side
    332,495.40x = 66,232,610,816.22
  5. Step 5: Solve for x
    x = 66,232,610,816.22/332,495.40
  6. Step 6: Final answer
    x = 199,198.58

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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.