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Finding the Fourth Proportional to 91,882.80, 126,788.40 and 51,600.96

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Solution

The fourth proportional to 91,882.80, 126,788.40 and 51,600.96 is: 71,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,882.80 : 126,788.40 = 51,600.96 : x
  2. Step 2: Convert to fraction form
    91,882.80/126,788.40 = 51,600.96/x
  3. Step 3: Cross multiply
    91,882.80x = 126,788.40 × 51,600.96
  4. Step 4: Simplify right side
    91,882.80x = 6,542,403,156.86
  5. Step 5: Solve for x
    x = 6,542,403,156.86/91,882.80
  6. Step 6: Final answer
    x = 71,203.79

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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.