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Finding the Fourth Proportional to 71,364.97, 107,049.88 and 33,905.71

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Solution

The fourth proportional to 71,364.97, 107,049.88 and 33,905.71 is: 50,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,364.97 : 107,049.88 = 33,905.71 : x
  2. Step 2: Convert to fraction form
    71,364.97/107,049.88 = 33,905.71/x
  3. Step 3: Cross multiply
    71,364.97x = 107,049.88 × 33,905.71
  4. Step 4: Simplify right side
    71,364.97x = 3,629,601,961.57
  5. Step 5: Solve for x
    x = 3,629,601,961.57/71,364.97
  6. Step 6: Final answer
    x = 50,859.72

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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.