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Finding the Fourth Proportional to 178,772.52, 267,750.54 and 85,343.88

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Solution

The fourth proportional to 178,772.52, 267,750.54 and 85,343.88 is: 127,820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,772.52 : 267,750.54 = 85,343.88 : x
  2. Step 2: Convert to fraction form
    178,772.52/267,750.54 = 85,343.88/x
  3. Step 3: Cross multiply
    178,772.52x = 267,750.54 × 85,343.88
  4. Step 4: Simplify right side
    178,772.52x = 22,850,869,955.70
  5. Step 5: Solve for x
    x = 22,850,869,955.70/178,772.52
  6. Step 6: Final answer
    x = 127,820.93

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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.