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Finding the Third Proportional to 69,379.50 and 104,079

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Solution

The third proportional to 69,379.50 and 104,079 is: 156,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.50 : 104,079 = 104,079 : x
  2. Step 2: Convert to fraction form
    69,379.50/104,079 = 104,079/x
  3. Step 3: Cross multiply
    69,379.50x = 104,079 × 104,079
  4. Step 4: Simplify right side
    69,379.50x = 10,832,438,241
  5. Step 5: Solve for x
    x = 10,832,438,241/69,379.50
  6. Step 6: Final answer
    x = 156,133.13

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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.