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Finding the Fourth Proportional to 72,175.27, 108,255.94 and 22,241.96

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Solution

The fourth proportional to 72,175.27, 108,255.94 and 22,241.96 is: 33,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,175.27 : 108,255.94 = 22,241.96 : x
  2. Step 2: Convert to fraction form
    72,175.27/108,255.94 = 22,241.96/x
  3. Step 3: Cross multiply
    72,175.27x = 108,255.94 × 22,241.96
  4. Step 4: Simplify right side
    72,175.27x = 2,407,824,287.24
  5. Step 5: Solve for x
    x = 2,407,824,287.24/72,175.27
  6. Step 6: Final answer
    x = 33,360.79

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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.