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Finding the Fourth Proportional to 68,569.65, 102,859.02 and 26,450.15

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Solution

The fourth proportional to 68,569.65, 102,859.02 and 26,450.15 is: 39,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,569.65 : 102,859.02 = 26,450.15 : x
  2. Step 2: Convert to fraction form
    68,569.65/102,859.02 = 26,450.15/x
  3. Step 3: Cross multiply
    68,569.65x = 102,859.02 × 26,450.15
  4. Step 4: Simplify right side
    68,569.65x = 2,720,635,993.56
  5. Step 5: Solve for x
    x = 2,720,635,993.56/68,569.65
  6. Step 6: Final answer
    x = 39,676.97

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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.