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Finding the Third Proportional to 100,336 and 217,960

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Solution

The third proportional to 100,336 and 217,960 is: 473,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,336 : 217,960 = 217,960 : x
  2. Step 2: Convert to fraction form
    100,336/217,960 = 217,960/x
  3. Step 3: Cross multiply
    100,336x = 217,960 × 217,960
  4. Step 4: Simplify right side
    100,336x = 47,506,561,600
  5. Step 5: Solve for x
    x = 47,506,561,600/100,336
  6. Step 6: Final answer
    x = 473,474.74

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.