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Finding the Third Proportional to 127,791.75 and 193,478.63

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Solution

The third proportional to 127,791.75 and 193,478.63 is: 292,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,791.75 : 193,478.63 = 193,478.63 : x
  2. Step 2: Convert to fraction form
    127,791.75/193,478.63 = 193,478.63/x
  3. Step 3: Cross multiply
    127,791.75x = 193,478.63 × 193,478.63
  4. Step 4: Simplify right side
    127,791.75x = 37,433,978,331.89
  5. Step 5: Solve for x
    x = 37,433,978,331.89/127,791.75
  6. Step 6: Final answer
    x = 292,929.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.