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Finding the Third Proportional to 117,115,378 and 254,391,757

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Solution

The third proportional to 117,115,378 and 254,391,757 is: 552,576,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115,378 : 254,391,757 = 254,391,757 : x
  2. Step 2: Convert to fraction form
    117,115,378/254,391,757 = 254,391,757/x
  3. Step 3: Cross multiply
    117,115,378x = 254,391,757 × 254,391,757
  4. Step 4: Simplify right side
    117,115,378x = 64,715,166,029,547,048
  5. Step 5: Solve for x
    x = 64,715,166,029,547,048/117,115,378
  6. Step 6: Final answer
    x = 552,576,161.51

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.