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Finding the Third Proportional to 31,747,220 and 68,906,536

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Solution

The third proportional to 31,747,220 and 68,906,536 is: 149,559,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747,220 : 68,906,536 = 68,906,536 : x
  2. Step 2: Convert to fraction form
    31,747,220/68,906,536 = 68,906,536/x
  3. Step 3: Cross multiply
    31,747,220x = 68,906,536 × 68,906,536
  4. Step 4: Simplify right side
    31,747,220x = 4,748,110,703,519,296
  5. Step 5: Solve for x
    x = 4,748,110,703,519,296/31,747,220
  6. Step 6: Final answer
    x = 149,559,889.13

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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.