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Finding the Third Proportional to 91,090,859 and 196,696,432

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Solution

The third proportional to 91,090,859 and 196,696,432 is: 424,735,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,090,859 : 196,696,432 = 196,696,432 : x
  2. Step 2: Convert to fraction form
    91,090,859/196,696,432 = 196,696,432/x
  3. Step 3: Cross multiply
    91,090,859x = 196,696,432 × 196,696,432
  4. Step 4: Simplify right side
    91,090,859x = 38,689,486,361,530,624
  5. Step 5: Solve for x
    x = 38,689,486,361,530,624/91,090,859
  6. Step 6: Final answer
    x = 424,735,113.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.