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Finding the Fourth Proportional to 179,096.80, 268,645.20 and 126,608.80

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Solution

The fourth proportional to 179,096.80, 268,645.20 and 126,608.80 is: 189,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,096.80 : 268,645.20 = 126,608.80 : x
  2. Step 2: Convert to fraction form
    179,096.80/268,645.20 = 126,608.80/x
  3. Step 3: Cross multiply
    179,096.80x = 268,645.20 × 126,608.80
  4. Step 4: Simplify right side
    179,096.80x = 34,012,846,397.76
  5. Step 5: Solve for x
    x = 34,012,846,397.76/179,096.80
  6. Step 6: Final answer
    x = 189,913.20

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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.