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Finding the Fourth Proportional to 263,375.73, 395,126.51 and 85,882.91

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Solution

The fourth proportional to 263,375.73, 395,126.51 and 85,882.91 is: 128,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,375.73 : 395,126.51 = 85,882.91 : x
  2. Step 2: Convert to fraction form
    263,375.73/395,126.51 = 85,882.91/x
  3. Step 3: Cross multiply
    263,375.73x = 395,126.51 × 85,882.91
  4. Step 4: Simplify right side
    263,375.73x = 33,934,612,091.90
  5. Step 5: Solve for x
    x = 33,934,612,091.90/263,375.73
  6. Step 6: Final answer
    x = 128,844.87

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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.