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Finding the Third Proportional to 67,889.81 and 101,379.09

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Solution

The third proportional to 67,889.81 and 101,379.09 is: 151,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,889.81 : 101,379.09 = 101,379.09 : x
  2. Step 2: Convert to fraction form
    67,889.81/101,379.09 = 101,379.09/x
  3. Step 3: Cross multiply
    67,889.81x = 101,379.09 × 101,379.09
  4. Step 4: Simplify right side
    67,889.81x = 10,277,720,649.57
  5. Step 5: Solve for x
    x = 10,277,720,649.57/67,889.81
  6. Step 6: Final answer
    x = 151,388.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.