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Finding the Third Proportional to 111,378 and 239,991

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Solution

The third proportional to 111,378 and 239,991 is: 517,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,378 : 239,991 = 239,991 : x
  2. Step 2: Convert to fraction form
    111,378/239,991 = 239,991/x
  3. Step 3: Cross multiply
    111,378x = 239,991 × 239,991
  4. Step 4: Simplify right side
    111,378x = 57,595,680,081
  5. Step 5: Solve for x
    x = 57,595,680,081/111,378
  6. Step 6: Final answer
    x = 517,119.00

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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.