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Finding the Fourth Proportional to 177,729.80, 266,493.90 and 72,425.48

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Solution

The fourth proportional to 177,729.80, 266,493.90 and 72,425.48 is: 108,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,729.80 : 266,493.90 = 72,425.48 : x
  2. Step 2: Convert to fraction form
    177,729.80/266,493.90 = 72,425.48/x
  3. Step 3: Cross multiply
    177,729.80x = 266,493.90 × 72,425.48
  4. Step 4: Simplify right side
    177,729.80x = 19,300,948,624.57
  5. Step 5: Solve for x
    x = 19,300,948,624.57/177,729.80
  6. Step 6: Final answer
    x = 108,597.14

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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.