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Finding the Fourth Proportional to 220,517.58, 330,793.92 and 68,696.04

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Solution

The fourth proportional to 220,517.58, 330,793.92 and 68,696.04 is: 103,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,517.58 : 330,793.92 = 68,696.04 : x
  2. Step 2: Convert to fraction form
    220,517.58/330,793.92 = 68,696.04/x
  3. Step 3: Cross multiply
    220,517.58x = 330,793.92 × 68,696.04
  4. Step 4: Simplify right side
    220,517.58x = 22,724,232,360.08
  5. Step 5: Solve for x
    x = 22,724,232,360.08/220,517.58
  6. Step 6: Final answer
    x = 103,049.53

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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.