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Finding the Third Proportional to 86,868 and 190,359

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Solution

The third proportional to 86,868 and 190,359 is: 417,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,868 : 190,359 = 190,359 : x
  2. Step 2: Convert to fraction form
    86,868/190,359 = 190,359/x
  3. Step 3: Cross multiply
    86,868x = 190,359 × 190,359
  4. Step 4: Simplify right side
    86,868x = 36,236,548,881
  5. Step 5: Solve for x
    x = 36,236,548,881/86,868
  6. Step 6: Final answer
    x = 417,144.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.