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Finding the Fourth Proportional to 168,043.58, 252,170.47 and 68,203.77

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Solution

The fourth proportional to 168,043.58, 252,170.47 and 68,203.77 is: 102,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,043.58 : 252,170.47 = 68,203.77 : x
  2. Step 2: Convert to fraction form
    168,043.58/252,170.47 = 68,203.77/x
  3. Step 3: Cross multiply
    168,043.58x = 252,170.47 × 68,203.77
  4. Step 4: Simplify right side
    168,043.58x = 17,198,976,736.67
  5. Step 5: Solve for x
    x = 17,198,976,736.67/168,043.58
  6. Step 6: Final answer
    x = 102,348.31

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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.