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Finding the Fourth Proportional to 178,311.38, 267,278.54 and 65,919.42

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Solution

The fourth proportional to 178,311.38, 267,278.54 and 65,919.42 is: 98,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,311.38 : 267,278.54 = 65,919.42 : x
  2. Step 2: Convert to fraction form
    178,311.38/267,278.54 = 65,919.42/x
  3. Step 3: Cross multiply
    178,311.38x = 267,278.54 × 65,919.42
  4. Step 4: Simplify right side
    178,311.38x = 17,618,846,005.65
  5. Step 5: Solve for x
    x = 17,618,846,005.65/178,311.38
  6. Step 6: Final answer
    x = 98,809.43

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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.