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Finding the Fourth Proportional to 220,650.51, 330,976.49 and 60,728.61

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Solution

The fourth proportional to 220,650.51, 330,976.49 and 60,728.61 is: 91,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,650.51 : 330,976.49 = 60,728.61 : x
  2. Step 2: Convert to fraction form
    220,650.51/330,976.49 = 60,728.61/x
  3. Step 3: Cross multiply
    220,650.51x = 330,976.49 × 60,728.61
  4. Step 4: Simplify right side
    220,650.51x = 20,099,741,876.74
  5. Step 5: Solve for x
    x = 20,099,741,876.74/220,650.51
  6. Step 6: Final answer
    x = 91,093.11

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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.