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Finding the Fourth Proportional to 241,163.36, 361,796.88 and 81,255.19

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Solution

The fourth proportional to 241,163.36, 361,796.88 and 81,255.19 is: 121,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,163.36 : 361,796.88 = 81,255.19 : x
  2. Step 2: Convert to fraction form
    241,163.36/361,796.88 = 81,255.19/x
  3. Step 3: Cross multiply
    241,163.36x = 361,796.88 × 81,255.19
  4. Step 4: Simplify right side
    241,163.36x = 29,397,873,626.02
  5. Step 5: Solve for x
    x = 29,397,873,626.02/241,163.36
  6. Step 6: Final answer
    x = 121,900.25

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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.