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Finding the Fourth Proportional to 71,364.78, 107,049.60 and 33,905.52

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Solution

The fourth proportional to 71,364.78, 107,049.60 and 33,905.52 is: 50,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,364.78 : 107,049.60 = 33,905.52 : x
  2. Step 2: Convert to fraction form
    71,364.78/107,049.60 = 33,905.52/x
  3. Step 3: Cross multiply
    71,364.78x = 107,049.60 × 33,905.52
  4. Step 4: Simplify right side
    71,364.78x = 3,629,572,353.79
  5. Step 5: Solve for x
    x = 3,629,572,353.79/71,364.78
  6. Step 6: Final answer
    x = 50,859.43

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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.