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Finding the Fourth Proportional to 69,676.75, 104,517.30 and 33,153.72

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Solution

The fourth proportional to 69,676.75, 104,517.30 and 33,153.72 is: 49,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,676.75 : 104,517.30 = 33,153.72 : x
  2. Step 2: Convert to fraction form
    69,676.75/104,517.30 = 33,153.72/x
  3. Step 3: Cross multiply
    69,676.75x = 104,517.30 × 33,153.72
  4. Step 4: Simplify right side
    69,676.75x = 3,465,137,566.97
  5. Step 5: Solve for x
    x = 3,465,137,566.97/69,676.75
  6. Step 6: Final answer
    x = 49,731.62

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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.