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Finding the Third Proportional to 55,218,431 and 120,133,047

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Solution

The third proportional to 55,218,431 and 120,133,047 is: 261,361,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218,431 : 120,133,047 = 120,133,047 : x
  2. Step 2: Convert to fraction form
    55,218,431/120,133,047 = 120,133,047/x
  3. Step 3: Cross multiply
    55,218,431x = 120,133,047 × 120,133,047
  4. Step 4: Simplify right side
    55,218,431x = 14,431,948,981,504,208
  5. Step 5: Solve for x
    x = 14,431,948,981,504,208/55,218,431
  6. Step 6: Final answer
    x = 261,361,083.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.