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Finding the Fourth Proportional to 91,508.68, 126,287.62 and 53,269

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Solution

The fourth proportional to 91,508.68, 126,287.62 and 53,269 is: 73,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,508.68 : 126,287.62 = 53,269 : x
  2. Step 2: Convert to fraction form
    91,508.68/126,287.62 = 53,269/x
  3. Step 3: Cross multiply
    91,508.68x = 126,287.62 × 53,269
  4. Step 4: Simplify right side
    91,508.68x = 6,727,215,229.78
  5. Step 5: Solve for x
    x = 6,727,215,229.78/91,508.68
  6. Step 6: Final answer
    x = 73,514.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.