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Finding the Fourth Proportional to 91,183.52, 125,854.25 and 53,469.92

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Solution

The fourth proportional to 91,183.52, 125,854.25 and 53,469.92 is: 73,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,183.52 : 125,854.25 = 53,469.92 : x
  2. Step 2: Convert to fraction form
    91,183.52/125,854.25 = 53,469.92/x
  3. Step 3: Cross multiply
    91,183.52x = 125,854.25 × 53,469.92
  4. Step 4: Simplify right side
    91,183.52x = 6,729,416,679.16
  5. Step 5: Solve for x
    x = 6,729,416,679.16/91,183.52
  6. Step 6: Final answer
    x = 73,800.80

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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.