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Finding the Fourth Proportional to 204,879.60, 307,319.40 and 167,481.90

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Solution

The fourth proportional to 204,879.60, 307,319.40 and 167,481.90 is: 251,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,879.60 : 307,319.40 = 167,481.90 : x
  2. Step 2: Convert to fraction form
    204,879.60/307,319.40 = 167,481.90/x
  3. Step 3: Cross multiply
    204,879.60x = 307,319.40 × 167,481.90
  4. Step 4: Simplify right side
    204,879.60x = 51,470,437,018.86
  5. Step 5: Solve for x
    x = 51,470,437,018.86/204,879.60
  6. Step 6: Final answer
    x = 251,222.85

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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.