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Finding the Fourth Proportional to 332,781.60, 499,245.30 and 133,051.80

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Solution

The fourth proportional to 332,781.60, 499,245.30 and 133,051.80 is: 199,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,781.60 : 499,245.30 = 133,051.80 : x
  2. Step 2: Convert to fraction form
    332,781.60/499,245.30 = 133,051.80/x
  3. Step 3: Cross multiply
    332,781.60x = 499,245.30 × 133,051.80
  4. Step 4: Simplify right side
    332,781.60x = 66,425,485,806.54
  5. Step 5: Solve for x
    x = 66,425,485,806.54/332,781.60
  6. Step 6: Final answer
    x = 199,606.85

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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.