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Finding the Third Proportional to 91,628,910 and 197,604,378

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Solution

The third proportional to 91,628,910 and 197,604,378 is: 426,148,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628,910 : 197,604,378 = 197,604,378 : x
  2. Step 2: Convert to fraction form
    91,628,910/197,604,378 = 197,604,378/x
  3. Step 3: Cross multiply
    91,628,910x = 197,604,378 × 197,604,378
  4. Step 4: Simplify right side
    91,628,910x = 39,047,490,204,766,880
  5. Step 5: Solve for x
    x = 39,047,490,204,766,880/91,628,910
  6. Step 6: Final answer
    x = 426,148,146.96

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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.