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Finding the Fourth Proportional to 126,571.80, 189,906.71 and 116,237.82

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Solution

The fourth proportional to 126,571.80, 189,906.71 and 116,237.82 is: 174,401.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,571.80 : 189,906.71 = 116,237.82 : x
  2. Step 2: Convert to fraction form
    126,571.80/189,906.71 = 116,237.82/x
  3. Step 3: Cross multiply
    126,571.80x = 189,906.71 × 116,237.82
  4. Step 4: Simplify right side
    126,571.80x = 22,074,341,392.58
  5. Step 5: Solve for x
    x = 22,074,341,392.58/126,571.80
  6. Step 6: Final answer
    x = 174,401.73

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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.