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Finding the Fourth Proportional to 177,791.60, 266,687.40 and 111,306.80

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Solution

The fourth proportional to 177,791.60, 266,687.40 and 111,306.80 is: 166,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,791.60 : 266,687.40 = 111,306.80 : x
  2. Step 2: Convert to fraction form
    177,791.60/266,687.40 = 111,306.80/x
  3. Step 3: Cross multiply
    177,791.60x = 266,687.40 × 111,306.80
  4. Step 4: Simplify right side
    177,791.60x = 29,684,121,094.32
  5. Step 5: Solve for x
    x = 29,684,121,094.32/177,791.60
  6. Step 6: Final answer
    x = 166,960.20

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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.