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Finding the Third Proportional to 115,665,859 and 154,203,940

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Solution

The third proportional to 115,665,859 and 154,203,940 is: 205,582,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,665,859 : 154,203,940 = 154,203,940 : x
  2. Step 2: Convert to fraction form
    115,665,859/154,203,940 = 154,203,940/x
  3. Step 3: Cross multiply
    115,665,859x = 154,203,940 × 154,203,940
  4. Step 4: Simplify right side
    115,665,859x = 23,778,855,111,523,600
  5. Step 5: Solve for x
    x = 23,778,855,111,523,600/115,665,859
  6. Step 6: Final answer
    x = 205,582,315.45

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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.