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Finding the Fourth Proportional to 178,048.80, 267,008.40 and 89,272.80

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Solution

The fourth proportional to 178,048.80, 267,008.40 and 89,272.80 is: 133,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,048.80 : 267,008.40 = 89,272.80 : x
  2. Step 2: Convert to fraction form
    178,048.80/267,008.40 = 89,272.80/x
  3. Step 3: Cross multiply
    178,048.80x = 267,008.40 × 89,272.80
  4. Step 4: Simplify right side
    178,048.80x = 23,836,587,491.52
  5. Step 5: Solve for x
    x = 23,836,587,491.52/178,048.80
  6. Step 6: Final answer
    x = 133,876.71

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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.