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Finding the Fourth Proportional to 91,481.44, 126,229.12 and 53,762.96

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Solution

The fourth proportional to 91,481.44, 126,229.12 and 53,762.96 is: 74,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,481.44 : 126,229.12 = 53,762.96 : x
  2. Step 2: Convert to fraction form
    91,481.44/126,229.12 = 53,762.96/x
  3. Step 3: Cross multiply
    91,481.44x = 126,229.12 × 53,762.96
  4. Step 4: Simplify right side
    91,481.44x = 6,786,451,129.40
  5. Step 5: Solve for x
    x = 6,786,451,129.40/91,481.44
  6. Step 6: Final answer
    x = 74,183.91

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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.