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Finding the Fourth Proportional to 168,402.26, 252,650.77 and 73,640.76

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Solution

The fourth proportional to 168,402.26, 252,650.77 and 73,640.76 is: 110,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,402.26 : 252,650.77 = 73,640.76 : x
  2. Step 2: Convert to fraction form
    168,402.26/252,650.77 = 73,640.76/x
  3. Step 3: Cross multiply
    168,402.26x = 252,650.77 × 73,640.76
  4. Step 4: Simplify right side
    168,402.26x = 18,605,394,533.28
  5. Step 5: Solve for x
    x = 18,605,394,533.28/168,402.26
  6. Step 6: Final answer
    x = 110,481.86

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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.