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Finding the Fourth Proportional to 67,194.75, 100,806.71 and 20,446.41

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Solution

The fourth proportional to 67,194.75, 100,806.71 and 20,446.41 is: 30,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,194.75 : 100,806.71 = 20,446.41 : x
  2. Step 2: Convert to fraction form
    67,194.75/100,806.71 = 20,446.41/x
  3. Step 3: Cross multiply
    67,194.75x = 100,806.71 × 20,446.41
  4. Step 4: Simplify right side
    67,194.75x = 2,061,135,221.18
  5. Step 5: Solve for x
    x = 2,061,135,221.18/67,194.75
  6. Step 6: Final answer
    x = 30,674.05

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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.