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Finding the Third Proportional to 121,296 and 173,687

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Solution

The third proportional to 121,296 and 173,687 is: 248,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,296 : 173,687 = 173,687 : x
  2. Step 2: Convert to fraction form
    121,296/173,687 = 173,687/x
  3. Step 3: Cross multiply
    121,296x = 173,687 × 173,687
  4. Step 4: Simplify right side
    121,296x = 30,167,173,969
  5. Step 5: Solve for x
    x = 30,167,173,969/121,296
  6. Step 6: Final answer
    x = 248,707.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.