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Finding the Third Proportional to 166,991,517 and 254,806,452

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Solution

The third proportional to 166,991,517 and 254,806,452 is: 388,800,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,991,517 : 254,806,452 = 254,806,452 : x
  2. Step 2: Convert to fraction form
    166,991,517/254,806,452 = 254,806,452/x
  3. Step 3: Cross multiply
    166,991,517x = 254,806,452 × 254,806,452
  4. Step 4: Simplify right side
    166,991,517x = 64,926,327,980,828,304
  5. Step 5: Solve for x
    x = 64,926,327,980,828,304/166,991,517
  6. Step 6: Final answer
    x = 388,800,156.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.