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Finding the Fourth Proportional to 67,212.20, 100,880.57 and 33,955.70

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Solution

The fourth proportional to 67,212.20, 100,880.57 and 33,955.70 is: 50,965.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.20 : 100,880.57 = 33,955.70 : x
  2. Step 2: Convert to fraction form
    67,212.20/100,880.57 = 33,955.70/x
  3. Step 3: Cross multiply
    67,212.20x = 100,880.57 × 33,955.70
  4. Step 4: Simplify right side
    67,212.20x = 3,425,469,696.57
  5. Step 5: Solve for x
    x = 3,425,469,696.57/67,212.20
  6. Step 6: Final answer
    x = 50,965.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.