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Finding the Third Proportional to 64,304 and 100,138

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Solution

The third proportional to 64,304 and 100,138 is: 155,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,304 : 100,138 = 100,138 : x
  2. Step 2: Convert to fraction form
    64,304/100,138 = 100,138/x
  3. Step 3: Cross multiply
    64,304x = 100,138 × 100,138
  4. Step 4: Simplify right side
    64,304x = 10,027,619,044
  5. Step 5: Solve for x
    x = 10,027,619,044/64,304
  6. Step 6: Final answer
    x = 155,940.83

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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.