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Finding the Fourth Proportional to 121,076.97, 167,082.71 and 67,363.84

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Solution

The fourth proportional to 121,076.97, 167,082.71 and 67,363.84 is: 92,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,076.97 : 167,082.71 = 67,363.84 : x
  2. Step 2: Convert to fraction form
    121,076.97/167,082.71 = 67,363.84/x
  3. Step 3: Cross multiply
    121,076.97x = 167,082.71 × 67,363.84
  4. Step 4: Simplify right side
    121,076.97x = 11,255,332,943.21
  5. Step 5: Solve for x
    x = 11,255,332,943.21/121,076.97
  6. Step 6: Final answer
    x = 92,960.15

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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.