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Finding the Third Proportional to 90,299 and 195,664

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Solution

The third proportional to 90,299 and 195,664 is: 423,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,299 : 195,664 = 195,664 : x
  2. Step 2: Convert to fraction form
    90,299/195,664 = 195,664/x
  3. Step 3: Cross multiply
    90,299x = 195,664 × 195,664
  4. Step 4: Simplify right side
    90,299x = 38,284,400,896
  5. Step 5: Solve for x
    x = 38,284,400,896/90,299
  6. Step 6: Final answer
    x = 423,973.70

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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.