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Finding the Third Proportional to 91,459,611 and 196,181,190

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Solution

The third proportional to 91,459,611 and 196,181,190 is: 420,809,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,459,611 : 196,181,190 = 196,181,190 : x
  2. Step 2: Convert to fraction form
    91,459,611/196,181,190 = 196,181,190/x
  3. Step 3: Cross multiply
    91,459,611x = 196,181,190 × 196,181,190
  4. Step 4: Simplify right side
    91,459,611x = 38,487,059,309,816,096
  5. Step 5: Solve for x
    x = 38,487,059,309,816,096/91,459,611
  6. Step 6: Final answer
    x = 420,809,348.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.