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Finding the Third Proportional to 75,424 and 165,788

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Solution

The third proportional to 75,424 and 165,788 is: 364,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424 : 165,788 = 165,788 : x
  2. Step 2: Convert to fraction form
    75,424/165,788 = 165,788/x
  3. Step 3: Cross multiply
    75,424x = 165,788 × 165,788
  4. Step 4: Simplify right side
    75,424x = 27,485,660,944
  5. Step 5: Solve for x
    x = 27,485,660,944/75,424
  6. Step 6: Final answer
    x = 364,415.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.