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Finding the Third Proportional to 70,266 and 108,318

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Solution

The third proportional to 70,266 and 108,318 is: 166,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,266 : 108,318 = 108,318 : x
  2. Step 2: Convert to fraction form
    70,266/108,318 = 108,318/x
  3. Step 3: Cross multiply
    70,266x = 108,318 × 108,318
  4. Step 4: Simplify right side
    70,266x = 11,732,789,124
  5. Step 5: Solve for x
    x = 11,732,789,124/70,266
  6. Step 6: Final answer
    x = 166,976.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.