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Finding the Fourth Proportional to 178,546.80, 267,447.60 and 83,857.80

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Solution

The fourth proportional to 178,546.80, 267,447.60 and 83,857.80 is: 125,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,546.80 : 267,447.60 = 83,857.80 : x
  2. Step 2: Convert to fraction form
    178,546.80/267,447.60 = 83,857.80/x
  3. Step 3: Cross multiply
    178,546.80x = 267,447.60 × 83,857.80
  4. Step 4: Simplify right side
    178,546.80x = 22,427,567,351.28
  5. Step 5: Solve for x
    x = 22,427,567,351.28/178,546.80
  6. Step 6: Final answer
    x = 125,611.70

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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.