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Finding the Fourth Proportional to 178,491.36, 267,605.82 and 85,062.72

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Solution

The fourth proportional to 178,491.36, 267,605.82 and 85,062.72 is: 127,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,491.36 : 267,605.82 = 85,062.72 : x
  2. Step 2: Convert to fraction form
    178,491.36/267,605.82 = 85,062.72/x
  3. Step 3: Cross multiply
    178,491.36x = 267,605.82 × 85,062.72
  4. Step 4: Simplify right side
    178,491.36x = 22,763,278,937.03
  5. Step 5: Solve for x
    x = 22,763,278,937.03/178,491.36
  6. Step 6: Final answer
    x = 127,531.55

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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.