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Finding the Third Proportional to 39,970,652 and 87,169,860

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Solution

The third proportional to 39,970,652 and 87,169,860 is: 190,104,091.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970,652 : 87,169,860 = 87,169,860 : x
  2. Step 2: Convert to fraction form
    39,970,652/87,169,860 = 87,169,860/x
  3. Step 3: Cross multiply
    39,970,652x = 87,169,860 × 87,169,860
  4. Step 4: Simplify right side
    39,970,652x = 7,598,584,492,419,600
  5. Step 5: Solve for x
    x = 7,598,584,492,419,600/39,970,652
  6. Step 6: Final answer
    x = 190,104,091.68

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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.