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Finding the Third Proportional to 71,987,292 and 154,899,195.75

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Solution

The third proportional to 71,987,292 and 154,899,195.75 is: 333,305,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,987,292 : 154,899,195.75 = 154,899,195.75 : x
  2. Step 2: Convert to fraction form
    71,987,292/154,899,195.75 = 154,899,195.75/x
  3. Step 3: Cross multiply
    71,987,292x = 154,899,195.75 × 154,899,195.75
  4. Step 4: Simplify right side
    71,987,292x = 23,993,760,843,996,820
  5. Step 5: Solve for x
    x = 23,993,760,843,996,820/71,987,292
  6. Step 6: Final answer
    x = 333,305,506.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.