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Finding the Third Proportional to 143,055,255 and 308,977,188

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Solution

The third proportional to 143,055,255 and 308,977,188 is: 667,342,857.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,055,255 : 308,977,188 = 308,977,188 : x
  2. Step 2: Convert to fraction form
    143,055,255/308,977,188 = 308,977,188/x
  3. Step 3: Cross multiply
    143,055,255x = 308,977,188 × 308,977,188
  4. Step 4: Simplify right side
    143,055,255x = 95,466,902,704,387,344
  5. Step 5: Solve for x
    x = 95,466,902,704,387,344/143,055,255
  6. Step 6: Final answer
    x = 667,342,857.87

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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.