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Finding the Third Proportional to 71,560,019 and 157,178,209

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Solution

The third proportional to 71,560,019 and 157,178,209 is: 345,234,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,560,019 : 157,178,209 = 157,178,209 : x
  2. Step 2: Convert to fraction form
    71,560,019/157,178,209 = 157,178,209/x
  3. Step 3: Cross multiply
    71,560,019x = 157,178,209 × 157,178,209
  4. Step 4: Simplify right side
    71,560,019x = 24,704,989,384,447,680
  5. Step 5: Solve for x
    x = 24,704,989,384,447,680/71,560,019
  6. Step 6: Final answer
    x = 345,234,528.02

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.