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Finding the Third Proportional to 90,874,538 and 195,605,910

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Solution

The third proportional to 90,874,538 and 195,605,910 is: 421,038,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,874,538 : 195,605,910 = 195,605,910 : x
  2. Step 2: Convert to fraction form
    90,874,538/195,605,910 = 195,605,910/x
  3. Step 3: Cross multiply
    90,874,538x = 195,605,910 × 195,605,910
  4. Step 4: Simplify right side
    90,874,538x = 38,261,672,026,928,096
  5. Step 5: Solve for x
    x = 38,261,672,026,928,096/90,874,538
  6. Step 6: Final answer
    x = 421,038,421.42

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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.