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Finding the Third Proportional to 188,841.38 and 405,749.25

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Solution

The third proportional to 188,841.38 and 405,749.25 is: 871,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,841.38 : 405,749.25 = 405,749.25 : x
  2. Step 2: Convert to fraction form
    188,841.38/405,749.25 = 405,749.25/x
  3. Step 3: Cross multiply
    188,841.38x = 405,749.25 × 405,749.25
  4. Step 4: Simplify right side
    188,841.38x = 164,632,453,875.56
  5. Step 5: Solve for x
    x = 164,632,453,875.56/188,841.38
  6. Step 6: Final answer
    x = 871,802.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.