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Finding the Third Proportional to 183,578 and 389,174

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Solution

The third proportional to 183,578 and 389,174 is: 825,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,578 : 389,174 = 389,174 : x
  2. Step 2: Convert to fraction form
    183,578/389,174 = 389,174/x
  3. Step 3: Cross multiply
    183,578x = 389,174 × 389,174
  4. Step 4: Simplify right side
    183,578x = 151,456,402,276
  5. Step 5: Solve for x
    x = 151,456,402,276/183,578
  6. Step 6: Final answer
    x = 825,024.80

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.