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Finding the Third Proportional to 86,484 and 188,108

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Solution

The third proportional to 86,484 and 188,108 is: 409,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,484 : 188,108 = 188,108 : x
  2. Step 2: Convert to fraction form
    86,484/188,108 = 188,108/x
  3. Step 3: Cross multiply
    86,484x = 188,108 × 188,108
  4. Step 4: Simplify right side
    86,484x = 35,384,619,664
  5. Step 5: Solve for x
    x = 35,384,619,664/86,484
  6. Step 6: Final answer
    x = 409,146.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.