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Finding the Fourth Proportional to 168,680.20, 253,020.30 and 44,021.20

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Solution

The fourth proportional to 168,680.20, 253,020.30 and 44,021.20 is: 66,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,680.20 : 253,020.30 = 44,021.20 : x
  2. Step 2: Convert to fraction form
    168,680.20/253,020.30 = 44,021.20/x
  3. Step 3: Cross multiply
    168,680.20x = 253,020.30 × 44,021.20
  4. Step 4: Simplify right side
    168,680.20x = 11,138,257,230.36
  5. Step 5: Solve for x
    x = 11,138,257,230.36/168,680.20
  6. Step 6: Final answer
    x = 66,031.80

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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.