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Finding the Third Proportional to 79,302 and 122,937

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Solution

The third proportional to 79,302 and 122,937 is: 190,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,302 : 122,937 = 122,937 : x
  2. Step 2: Convert to fraction form
    79,302/122,937 = 122,937/x
  3. Step 3: Cross multiply
    79,302x = 122,937 × 122,937
  4. Step 4: Simplify right side
    79,302x = 15,113,505,969
  5. Step 5: Solve for x
    x = 15,113,505,969/79,302
  6. Step 6: Final answer
    x = 190,581.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.