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Finding the Third Proportional to 53,721 and 118,164

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Solution

The third proportional to 53,721 and 118,164 is: 259,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721 : 118,164 = 118,164 : x
  2. Step 2: Convert to fraction form
    53,721/118,164 = 118,164/x
  3. Step 3: Cross multiply
    53,721x = 118,164 × 118,164
  4. Step 4: Simplify right side
    53,721x = 13,962,730,896
  5. Step 5: Solve for x
    x = 13,962,730,896/53,721
  6. Step 6: Final answer
    x = 259,911.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.