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Finding the Fourth Proportional to 71,366.81, 107,051.22 and 33,930.72

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Solution

The fourth proportional to 71,366.81, 107,051.22 and 33,930.72 is: 50,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.81 : 107,051.22 = 33,930.72 : x
  2. Step 2: Convert to fraction form
    71,366.81/107,051.22 = 33,930.72/x
  3. Step 3: Cross multiply
    71,366.81x = 107,051.22 × 33,930.72
  4. Step 4: Simplify right side
    71,366.81x = 3,632,324,971.48
  5. Step 5: Solve for x
    x = 3,632,324,971.48/71,366.81
  6. Step 6: Final answer
    x = 50,896.56

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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.