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Finding the Fourth Proportional to 122,728.52, 184,072.24 and 33,990.96

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Solution

The fourth proportional to 122,728.52, 184,072.24 and 33,990.96 is: 50,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,728.52 : 184,072.24 = 33,990.96 : x
  2. Step 2: Convert to fraction form
    122,728.52/184,072.24 = 33,990.96/x
  3. Step 3: Cross multiply
    122,728.52x = 184,072.24 × 33,990.96
  4. Step 4: Simplify right side
    122,728.52x = 6,256,792,146.95
  5. Step 5: Solve for x
    x = 6,256,792,146.95/122,728.52
  6. Step 6: Final answer
    x = 50,980.75

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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.