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Finding the Third Proportional to 57,424,555 and 86,178,831

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Solution

The third proportional to 57,424,555 and 86,178,831 is: 129,331,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424,555 : 86,178,831 = 86,178,831 : x
  2. Step 2: Convert to fraction form
    57,424,555/86,178,831 = 86,178,831/x
  3. Step 3: Cross multiply
    57,424,555x = 86,178,831 × 86,178,831
  4. Step 4: Simplify right side
    57,424,555x = 7,426,790,912,526,561
  5. Step 5: Solve for x
    x = 7,426,790,912,526,561/57,424,555
  6. Step 6: Final answer
    x = 129,331,274.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.