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Finding the Fourth Proportional to 122,978.20, 184,467.30 and 44,100.40

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Solution

The fourth proportional to 122,978.20, 184,467.30 and 44,100.40 is: 66,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,978.20 : 184,467.30 = 44,100.40 : x
  2. Step 2: Convert to fraction form
    122,978.20/184,467.30 = 44,100.40/x
  3. Step 3: Cross multiply
    122,978.20x = 184,467.30 × 44,100.40
  4. Step 4: Simplify right side
    122,978.20x = 8,135,081,716.92
  5. Step 5: Solve for x
    x = 8,135,081,716.92/122,978.20
  6. Step 6: Final answer
    x = 66,150.60

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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.