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Finding the Third Proportional to 74,662 and 115,604

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Solution

The third proportional to 74,662 and 115,604 is: 178,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662 : 115,604 = 115,604 : x
  2. Step 2: Convert to fraction form
    74,662/115,604 = 115,604/x
  3. Step 3: Cross multiply
    74,662x = 115,604 × 115,604
  4. Step 4: Simplify right side
    74,662x = 13,364,284,816
  5. Step 5: Solve for x
    x = 13,364,284,816/74,662
  6. Step 6: Final answer
    x = 178,997.14

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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.