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Finding the Third Proportional to 106,879 and 166,789

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Solution

The third proportional to 106,879 and 166,789 is: 260,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,879 : 166,789 = 166,789 : x
  2. Step 2: Convert to fraction form
    106,879/166,789 = 166,789/x
  3. Step 3: Cross multiply
    106,879x = 166,789 × 166,789
  4. Step 4: Simplify right side
    106,879x = 27,818,570,521
  5. Step 5: Solve for x
    x = 27,818,570,521/106,879
  6. Step 6: Final answer
    x = 260,280.98

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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.