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Finding the Fourth Proportional to 168,309.80, 252,027.30 and 133,026.20

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Solution

The fourth proportional to 168,309.80, 252,027.30 and 133,026.20 is: 199,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,309.80 : 252,027.30 = 133,026.20 : x
  2. Step 2: Convert to fraction form
    168,309.80/252,027.30 = 133,026.20/x
  3. Step 3: Cross multiply
    168,309.80x = 252,027.30 × 133,026.20
  4. Step 4: Simplify right side
    168,309.80x = 33,526,234,015.26
  5. Step 5: Solve for x
    x = 33,526,234,015.26/168,309.80
  6. Step 6: Final answer
    x = 199,193.59

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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.