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Finding the Third Proportional to 86,908 and 190,425

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Solution

The third proportional to 86,908 and 190,425 is: 417,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908 : 190,425 = 190,425 : x
  2. Step 2: Convert to fraction form
    86,908/190,425 = 190,425/x
  3. Step 3: Cross multiply
    86,908x = 190,425 × 190,425
  4. Step 4: Simplify right side
    86,908x = 36,261,680,625
  5. Step 5: Solve for x
    x = 36,261,680,625/86,908
  6. Step 6: Final answer
    x = 417,242.15

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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.