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Finding the Fourth Proportional to 178,741.56, 267,704.04 and 85,312.92

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Solution

The fourth proportional to 178,741.56, 267,704.04 and 85,312.92 is: 127,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,741.56 : 267,704.04 = 85,312.92 : x
  2. Step 2: Convert to fraction form
    178,741.56/267,704.04 = 85,312.92/x
  3. Step 3: Cross multiply
    178,741.56x = 267,704.04 × 85,312.92
  4. Step 4: Simplify right side
    178,741.56x = 22,838,613,348.20
  5. Step 5: Solve for x
    x = 22,838,613,348.20/178,741.56
  6. Step 6: Final answer
    x = 127,774.50

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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.