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Finding the Fourth Proportional to 69,162.50, 103,769.90 and 27,072.66

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Solution

The fourth proportional to 69,162.50, 103,769.90 and 27,072.66 is: 40,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162.50 : 103,769.90 = 27,072.66 : x
  2. Step 2: Convert to fraction form
    69,162.50/103,769.90 = 27,072.66/x
  3. Step 3: Cross multiply
    69,162.50x = 103,769.90 × 27,072.66
  4. Step 4: Simplify right side
    69,162.50x = 2,809,327,576.23
  5. Step 5: Solve for x
    x = 2,809,327,576.23/69,162.50
  6. Step 6: Final answer
    x = 40,619.23

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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.