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Finding the Third Proportional to 73,072 and 157,242

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Solution

The third proportional to 73,072 and 157,242 is: 338,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,072 : 157,242 = 157,242 : x
  2. Step 2: Convert to fraction form
    73,072/157,242 = 157,242/x
  3. Step 3: Cross multiply
    73,072x = 157,242 × 157,242
  4. Step 4: Simplify right side
    73,072x = 24,725,046,564
  5. Step 5: Solve for x
    x = 24,725,046,564/73,072
  6. Step 6: Final answer
    x = 338,365.54

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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.