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Finding the Third Proportional to 109,080 and 166,788

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Solution

The third proportional to 109,080 and 166,788 is: 255,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,080 : 166,788 = 166,788 : x
  2. Step 2: Convert to fraction form
    109,080/166,788 = 166,788/x
  3. Step 3: Cross multiply
    109,080x = 166,788 × 166,788
  4. Step 4: Simplify right side
    109,080x = 27,818,236,944
  5. Step 5: Solve for x
    x = 27,818,236,944/109,080
  6. Step 6: Final answer
    x = 255,026.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.