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Finding the Third Proportional to 69,895,859 and 109,407,087

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Solution

The third proportional to 69,895,859 and 109,407,087 is: 171,253,502.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,895,859 : 109,407,087 = 109,407,087 : x
  2. Step 2: Convert to fraction form
    69,895,859/109,407,087 = 109,407,087/x
  3. Step 3: Cross multiply
    69,895,859x = 109,407,087 × 109,407,087
  4. Step 4: Simplify right side
    69,895,859x = 11,969,910,685,825,568
  5. Step 5: Solve for x
    x = 11,969,910,685,825,568/69,895,859
  6. Step 6: Final answer
    x = 171,253,502.81

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.