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Finding the Fourth Proportional to 122,879.58, 184,371.21 and 73,054.86

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Solution

The fourth proportional to 122,879.58, 184,371.21 and 73,054.86 is: 109,613.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,879.58 : 184,371.21 = 73,054.86 : x
  2. Step 2: Convert to fraction form
    122,879.58/184,371.21 = 73,054.86/x
  3. Step 3: Cross multiply
    122,879.58x = 184,371.21 × 73,054.86
  4. Step 4: Simplify right side
    122,879.58x = 13,469,212,934.58
  5. Step 5: Solve for x
    x = 13,469,212,934.58/122,879.58
  6. Step 6: Final answer
    x = 109,613.11

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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.