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Finding the Third Proportional to 178,517,831 and 275,855,313

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Solution

The third proportional to 178,517,831 and 275,855,313 is: 426,266,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,517,831 : 275,855,313 = 275,855,313 : x
  2. Step 2: Convert to fraction form
    178,517,831/275,855,313 = 275,855,313/x
  3. Step 3: Cross multiply
    178,517,831x = 275,855,313 × 275,855,313
  4. Step 4: Simplify right side
    178,517,831x = 76,096,153,710,327,968
  5. Step 5: Solve for x
    x = 76,096,153,710,327,968/178,517,831
  6. Step 6: Final answer
    x = 426,266,403.10

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.