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Finding the Third Proportional to 90,874,534 and 195,605,900

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Solution

The third proportional to 90,874,534 and 195,605,900 is: 421,038,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,874,534 : 195,605,900 = 195,605,900 : x
  2. Step 2: Convert to fraction form
    90,874,534/195,605,900 = 195,605,900/x
  3. Step 3: Cross multiply
    90,874,534x = 195,605,900 × 195,605,900
  4. Step 4: Simplify right side
    90,874,534x = 38,261,668,114,810,000
  5. Step 5: Solve for x
    x = 38,261,668,114,810,000/90,874,534
  6. Step 6: Final answer
    x = 421,038,396.90

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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.