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Finding the Fourth Proportional to 178,191.44, 267,253.72 and 89,421.12

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Solution

The fourth proportional to 178,191.44, 267,253.72 and 89,421.12 is: 134,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,191.44 : 267,253.72 = 89,421.12 : x
  2. Step 2: Convert to fraction form
    178,191.44/267,253.72 = 89,421.12/x
  3. Step 3: Cross multiply
    178,191.44x = 267,253.72 × 89,421.12
  4. Step 4: Simplify right side
    178,191.44x = 23,898,126,966.57
  5. Step 5: Solve for x
    x = 23,898,126,966.57/178,191.44
  6. Step 6: Final answer
    x = 134,114.90

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1.5x scale

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.