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Finding the Third Proportional to 91,086,884 and 198,346,603

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Solution

The third proportional to 91,086,884 and 198,346,603 is: 431,910,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,086,884 : 198,346,603 = 198,346,603 : x
  2. Step 2: Convert to fraction form
    91,086,884/198,346,603 = 198,346,603/x
  3. Step 3: Cross multiply
    91,086,884x = 198,346,603 × 198,346,603
  4. Step 4: Simplify right side
    91,086,884x = 39,341,374,921,639,608
  5. Step 5: Solve for x
    x = 39,341,374,921,639,608/91,086,884
  6. Step 6: Final answer
    x = 431,910,426.55

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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.