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Finding the Fourth Proportional to 179,074.80, 268,612.20 and 132,418.80

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Solution

The fourth proportional to 179,074.80, 268,612.20 and 132,418.80 is: 198,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,074.80 : 268,612.20 = 132,418.80 : x
  2. Step 2: Convert to fraction form
    179,074.80/268,612.20 = 132,418.80/x
  3. Step 3: Cross multiply
    179,074.80x = 268,612.20 × 132,418.80
  4. Step 4: Simplify right side
    179,074.80x = 35,569,305,189.36
  5. Step 5: Solve for x
    x = 35,569,305,189.36/179,074.80
  6. Step 6: Final answer
    x = 198,628.20

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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.