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Finding the Third Proportional to 74,100 and 174,812

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Solution

The third proportional to 74,100 and 174,812 is: 412,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100 : 174,812 = 174,812 : x
  2. Step 2: Convert to fraction form
    74,100/174,812 = 174,812/x
  3. Step 3: Cross multiply
    74,100x = 174,812 × 174,812
  4. Step 4: Simplify right side
    74,100x = 30,559,235,344
  5. Step 5: Solve for x
    x = 30,559,235,344/74,100
  6. Step 6: Final answer
    x = 412,405.34

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.