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Finding the Fourth Proportional to 225,451.82, 338,183.94 and 67,680.32

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Solution

The fourth proportional to 225,451.82, 338,183.94 and 67,680.32 is: 101,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,451.82 : 338,183.94 = 67,680.32 : x
  2. Step 2: Convert to fraction form
    225,451.82/338,183.94 = 67,680.32/x
  3. Step 3: Cross multiply
    225,451.82x = 338,183.94 × 67,680.32
  4. Step 4: Simplify right side
    225,451.82x = 22,888,397,278.06
  5. Step 5: Solve for x
    x = 22,888,397,278.06/225,451.82
  6. Step 6: Final answer
    x = 101,522.34

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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.