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Finding the Fourth Proportional to 178,061.20, 267,264.60 and 89,414.80

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Solution

The fourth proportional to 178,061.20, 267,264.60 and 89,414.80 is: 134,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,061.20 : 267,264.60 = 89,414.80 : x
  2. Step 2: Convert to fraction form
    178,061.20/267,264.60 = 89,414.80/x
  3. Step 3: Cross multiply
    178,061.20x = 267,264.60 × 89,414.80
  4. Step 4: Simplify right side
    178,061.20x = 23,897,410,756.08
  5. Step 5: Solve for x
    x = 23,897,410,756.08/178,061.20
  6. Step 6: Final answer
    x = 134,208.97

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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.