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Finding the Third Proportional to 56,721 and 118,110

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Solution

The third proportional to 56,721 and 118,110 is: 245,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721 : 118,110 = 118,110 : x
  2. Step 2: Convert to fraction form
    56,721/118,110 = 118,110/x
  3. Step 3: Cross multiply
    56,721x = 118,110 × 118,110
  4. Step 4: Simplify right side
    56,721x = 13,949,972,100
  5. Step 5: Solve for x
    x = 13,949,972,100/56,721
  6. Step 6: Final answer
    x = 245,940.17

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.