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Finding the Fourth Proportional to 160,871.56, 221,757.16 and 126,819.16

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Solution

The fourth proportional to 160,871.56, 221,757.16 and 126,819.16 is: 174,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,871.56 : 221,757.16 = 126,819.16 : x
  2. Step 2: Convert to fraction form
    160,871.56/221,757.16 = 126,819.16/x
  3. Step 3: Cross multiply
    160,871.56x = 221,757.16 × 126,819.16
  4. Step 4: Simplify right side
    160,871.56x = 28,123,056,755.19
  5. Step 5: Solve for x
    x = 28,123,056,755.19/160,871.56
  6. Step 6: Final answer
    x = 174,816.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.