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Finding the Fourth Proportional to 69,236.49, 103,780.92 and 35,910.71

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Solution

The fourth proportional to 69,236.49, 103,780.92 and 35,910.71 is: 53,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,236.49 : 103,780.92 = 35,910.71 : x
  2. Step 2: Convert to fraction form
    69,236.49/103,780.92 = 35,910.71/x
  3. Step 3: Cross multiply
    69,236.49x = 103,780.92 × 35,910.71
  4. Step 4: Simplify right side
    69,236.49x = 3,726,846,758.13
  5. Step 5: Solve for x
    x = 3,726,846,758.13/69,236.49
  6. Step 6: Final answer
    x = 53,827.78

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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.