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Finding the Third Proportional to 84,992 and 179,712

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Solution

The third proportional to 84,992 and 179,712 is: 379,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992 : 179,712 = 179,712 : x
  2. Step 2: Convert to fraction form
    84,992/179,712 = 179,712/x
  3. Step 3: Cross multiply
    84,992x = 179,712 × 179,712
  4. Step 4: Simplify right side
    84,992x = 32,296,402,944
  5. Step 5: Solve for x
    x = 32,296,402,944/84,992
  6. Step 6: Final answer
    x = 379,993.45

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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.