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Finding the Third Proportional to 111,306.75 and 262,485

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Solution

The third proportional to 111,306.75 and 262,485 is: 618,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,306.75 : 262,485 = 262,485 : x
  2. Step 2: Convert to fraction form
    111,306.75/262,485 = 262,485/x
  3. Step 3: Cross multiply
    111,306.75x = 262,485 × 262,485
  4. Step 4: Simplify right side
    111,306.75x = 68,898,375,225
  5. Step 5: Solve for x
    x = 68,898,375,225/111,306.75
  6. Step 6: Final answer
    x = 618,995.48

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.