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Finding the Fourth Proportional to 71,733.76, 107,617.92 and 22,485.76

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Solution

The fourth proportional to 71,733.76, 107,617.92 and 22,485.76 is: 33,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,733.76 : 107,617.92 = 22,485.76 : x
  2. Step 2: Convert to fraction form
    71,733.76/107,617.92 = 22,485.76/x
  3. Step 3: Cross multiply
    71,733.76x = 107,617.92 × 22,485.76
  4. Step 4: Simplify right side
    71,733.76x = 2,419,870,720.82
  5. Step 5: Solve for x
    x = 2,419,870,720.82/71,733.76
  6. Step 6: Final answer
    x = 33,734.06

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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.