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Finding the Fourth Proportional to 263,471.27, 395,248.22 and 85,937.30

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Solution

The fourth proportional to 263,471.27, 395,248.22 and 85,937.30 is: 128,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,471.27 : 395,248.22 = 85,937.30 : x
  2. Step 2: Convert to fraction form
    263,471.27/395,248.22 = 85,937.30/x
  3. Step 3: Cross multiply
    263,471.27x = 395,248.22 × 85,937.30
  4. Step 4: Simplify right side
    263,471.27x = 33,966,563,095.21
  5. Step 5: Solve for x
    x = 33,966,563,095.21/263,471.27
  6. Step 6: Final answer
    x = 128,919.42

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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.