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Finding the Third Proportional to 69,220 and 105,198

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Solution

The third proportional to 69,220 and 105,198 is: 159,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,220 : 105,198 = 105,198 : x
  2. Step 2: Convert to fraction form
    69,220/105,198 = 105,198/x
  3. Step 3: Cross multiply
    69,220x = 105,198 × 105,198
  4. Step 4: Simplify right side
    69,220x = 11,066,619,204
  5. Step 5: Solve for x
    x = 11,066,619,204/69,220
  6. Step 6: Final answer
    x = 159,876.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.