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Finding the Third Proportional to 115,665,858 and 154,203,939

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Solution

The third proportional to 115,665,858 and 154,203,939 is: 205,582,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,665,858 : 154,203,939 = 154,203,939 : x
  2. Step 2: Convert to fraction form
    115,665,858/154,203,939 = 154,203,939/x
  3. Step 3: Cross multiply
    115,665,858x = 154,203,939 × 154,203,939
  4. Step 4: Simplify right side
    115,665,858x = 23,778,854,803,115,720
  5. Step 5: Solve for x
    x = 23,778,854,803,115,720/115,665,858
  6. Step 6: Final answer
    x = 205,582,314.56

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.