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Finding the Fourth Proportional to 160,873.56, 221,759.92 and 126,821.16

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Solution

The fourth proportional to 160,873.56, 221,759.92 and 126,821.16 is: 174,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,873.56 : 221,759.92 = 126,821.16 : x
  2. Step 2: Convert to fraction form
    160,873.56/221,759.92 = 126,821.16/x
  3. Step 3: Cross multiply
    160,873.56x = 221,759.92 × 126,821.16
  4. Step 4: Simplify right side
    160,873.56x = 28,123,850,295.91
  5. Step 5: Solve for x
    x = 28,123,850,295.91/160,873.56
  6. Step 6: Final answer
    x = 174,819.59

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1.5x scale

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.