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Finding the Third Proportional to 58,221 and 125,739

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Solution

The third proportional to 58,221 and 125,739 is: 271,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221 : 125,739 = 125,739 : x
  2. Step 2: Convert to fraction form
    58,221/125,739 = 125,739/x
  3. Step 3: Cross multiply
    58,221x = 125,739 × 125,739
  4. Step 4: Simplify right side
    58,221x = 15,810,296,121
  5. Step 5: Solve for x
    x = 15,810,296,121/58,221
  6. Step 6: Final answer
    x = 271,556.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.