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Finding the Third Proportional to 108,621 and 169,788.66

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Solution

The third proportional to 108,621 and 169,788.66 is: 265,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,621 : 169,788.66 = 169,788.66 : x
  2. Step 2: Convert to fraction form
    108,621/169,788.66 = 169,788.66/x
  3. Step 3: Cross multiply
    108,621x = 169,788.66 × 169,788.66
  4. Step 4: Simplify right side
    108,621x = 28,828,187,791.18
  5. Step 5: Solve for x
    x = 28,828,187,791.18/108,621
  6. Step 6: Final answer
    x = 265,401.61

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.