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Finding the Fourth Proportional to 115,471.75, 173,212.67 and 36,591.79

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Solution

The fourth proportional to 115,471.75, 173,212.67 and 36,591.79 is: 54,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,471.75 : 173,212.67 = 36,591.79 : x
  2. Step 2: Convert to fraction form
    115,471.75/173,212.67 = 36,591.79/x
  3. Step 3: Cross multiply
    115,471.75x = 173,212.67 × 36,591.79
  4. Step 4: Simplify right side
    115,471.75x = 6,338,161,645.98
  5. Step 5: Solve for x
    x = 6,338,161,645.98/115,471.75
  6. Step 6: Final answer
    x = 54,889.28

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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.