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Finding the Fourth Proportional to 252,743.68, 379,115.34 and 65,755.18

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Solution

The fourth proportional to 252,743.68, 379,115.34 and 65,755.18 is: 98,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,743.68 : 379,115.34 = 65,755.18 : x
  2. Step 2: Convert to fraction form
    252,743.68/379,115.34 = 65,755.18/x
  3. Step 3: Cross multiply
    252,743.68x = 379,115.34 × 65,755.18
  4. Step 4: Simplify right side
    252,743.68x = 24,928,797,422.46
  5. Step 5: Solve for x
    x = 24,928,797,422.46/252,743.68
  6. Step 6: Final answer
    x = 98,632.72

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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.