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Finding the Fourth Proportional to 168,234.20, 252,011.10 and 104,859.80

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Solution

The fourth proportional to 168,234.20, 252,011.10 and 104,859.80 is: 157,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,234.20 : 252,011.10 = 104,859.80 : x
  2. Step 2: Convert to fraction form
    168,234.20/252,011.10 = 104,859.80/x
  3. Step 3: Cross multiply
    168,234.20x = 252,011.10 × 104,859.80
  4. Step 4: Simplify right side
    168,234.20x = 26,425,833,543.78
  5. Step 5: Solve for x
    x = 26,425,833,543.78/168,234.20
  6. Step 6: Final answer
    x = 157,077.65

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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.