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Finding the Third Proportional to 74,232 and 156,744

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Solution

The third proportional to 74,232 and 156,744 is: 330,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,232 : 156,744 = 156,744 : x
  2. Step 2: Convert to fraction form
    74,232/156,744 = 156,744/x
  3. Step 3: Cross multiply
    74,232x = 156,744 × 156,744
  4. Step 4: Simplify right side
    74,232x = 24,568,681,536
  5. Step 5: Solve for x
    x = 24,568,681,536/74,232
  6. Step 6: Final answer
    x = 330,971.57

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.