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Finding the Fourth Proportional to 250,083.73, 345,115.56 and 136,906.48

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Solution

The fourth proportional to 250,083.73, 345,115.56 and 136,906.48 is: 188,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,083.73 : 345,115.56 = 136,906.48 : x
  2. Step 2: Convert to fraction form
    250,083.73/345,115.56 = 136,906.48/x
  3. Step 3: Cross multiply
    250,083.73x = 345,115.56 × 136,906.48
  4. Step 4: Simplify right side
    250,083.73x = 47,248,556,512.83
  5. Step 5: Solve for x
    x = 47,248,556,512.83/250,083.73
  6. Step 6: Final answer
    x = 188,930.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.