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Finding the Third Proportional to 83,918 and 183,316

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Solution

The third proportional to 83,918 and 183,316 is: 400,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,918 : 183,316 = 183,316 : x
  2. Step 2: Convert to fraction form
    83,918/183,316 = 183,316/x
  3. Step 3: Cross multiply
    83,918x = 183,316 × 183,316
  4. Step 4: Simplify right side
    83,918x = 33,604,755,856
  5. Step 5: Solve for x
    x = 33,604,755,856/83,918
  6. Step 6: Final answer
    x = 400,447.53

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.