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Finding the Fourth Proportional to 220,494.92, 330,724.41 and 70,694.87

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Solution

The fourth proportional to 220,494.92, 330,724.41 and 70,694.87 is: 106,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,494.92 : 330,724.41 = 70,694.87 : x
  2. Step 2: Convert to fraction form
    220,494.92/330,724.41 = 70,694.87/x
  3. Step 3: Cross multiply
    220,494.92x = 330,724.41 × 70,694.87
  4. Step 4: Simplify right side
    220,494.92x = 23,380,517,517.15
  5. Step 5: Solve for x
    x = 23,380,517,517.15/220,494.92
  6. Step 6: Final answer
    x = 106,036.54

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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.