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Finding the Third Proportional to 90,909 and 193,482

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Solution

The third proportional to 90,909 and 193,482 is: 411,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,909 : 193,482 = 193,482 : x
  2. Step 2: Convert to fraction form
    90,909/193,482 = 193,482/x
  3. Step 3: Cross multiply
    90,909x = 193,482 × 193,482
  4. Step 4: Simplify right side
    90,909x = 37,435,284,324
  5. Step 5: Solve for x
    x = 37,435,284,324/90,909
  6. Step 6: Final answer
    x = 411,788.54

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.