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Finding the Fourth Proportional to 325,067.73, 487,480.34 and 111,775.31

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Solution

The fourth proportional to 325,067.73, 487,480.34 and 111,775.31 is: 167,621.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,067.73 : 487,480.34 = 111,775.31 : x
  2. Step 2: Convert to fraction form
    325,067.73/487,480.34 = 111,775.31/x
  3. Step 3: Cross multiply
    325,067.73x = 487,480.34 × 111,775.31
  4. Step 4: Simplify right side
    325,067.73x = 54,488,265,792.49
  5. Step 5: Solve for x
    x = 54,488,265,792.49/325,067.73
  6. Step 6: Final answer
    x = 167,621.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.