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Finding the Third Proportional to 84,243 and 187,167

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Solution

The third proportional to 84,243 and 187,167 is: 415,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243 : 187,167 = 187,167 : x
  2. Step 2: Convert to fraction form
    84,243/187,167 = 187,167/x
  3. Step 3: Cross multiply
    84,243x = 187,167 × 187,167
  4. Step 4: Simplify right side
    84,243x = 35,031,485,889
  5. Step 5: Solve for x
    x = 35,031,485,889/84,243
  6. Step 6: Final answer
    x = 415,838.54

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.