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Finding the Fourth Proportional to 160,906.80, 222,050.70 and 89,286.65

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Solution

The fourth proportional to 160,906.80, 222,050.70 and 89,286.65 is: 123,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,906.80 : 222,050.70 = 89,286.65 : x
  2. Step 2: Convert to fraction form
    160,906.80/222,050.70 = 89,286.65/x
  3. Step 3: Cross multiply
    160,906.80x = 222,050.70 × 89,286.65
  4. Step 4: Simplify right side
    160,906.80x = 19,826,162,022.90
  5. Step 5: Solve for x
    x = 19,826,162,022.90/160,906.80
  6. Step 6: Final answer
    x = 123,215.19

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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.