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Finding the Fourth Proportional to 178,152.20, 267,252.60 and 65,805.20

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Solution

The fourth proportional to 178,152.20, 267,252.60 and 65,805.20 is: 98,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,152.20 : 267,252.60 = 65,805.20 : x
  2. Step 2: Convert to fraction form
    178,152.20/267,252.60 = 65,805.20/x
  3. Step 3: Cross multiply
    178,152.20x = 267,252.60 × 65,805.20
  4. Step 4: Simplify right side
    178,152.20x = 17,586,610,793.52
  5. Step 5: Solve for x
    x = 17,586,610,793.52/178,152.20
  6. Step 6: Final answer
    x = 98,716.78

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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.