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Finding the Third Proportional to 106,980 and 169,548

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Solution

The third proportional to 106,980 and 169,548 is: 268,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,980 : 169,548 = 169,548 : x
  2. Step 2: Convert to fraction form
    106,980/169,548 = 169,548/x
  3. Step 3: Cross multiply
    106,980x = 169,548 × 169,548
  4. Step 4: Simplify right side
    106,980x = 28,746,524,304
  5. Step 5: Solve for x
    x = 28,746,524,304/106,980
  6. Step 6: Final answer
    x = 268,709.33

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.