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Finding the Third Proportional to 122,208.75 and 186,945.75

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Solution

The third proportional to 122,208.75 and 186,945.75 is: 285,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,208.75 : 186,945.75 = 186,945.75 : x
  2. Step 2: Convert to fraction form
    122,208.75/186,945.75 = 186,945.75/x
  3. Step 3: Cross multiply
    122,208.75x = 186,945.75 × 186,945.75
  4. Step 4: Simplify right side
    122,208.75x = 34,948,713,443.06
  5. Step 5: Solve for x
    x = 34,948,713,443.06/122,208.75
  6. Step 6: Final answer
    x = 285,975.54

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.