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Finding the Fourth Proportional to 312,141.60, 467,879.76 and 162,230.85

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Solution

The fourth proportional to 312,141.60, 467,879.76 and 162,230.85 is: 243,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,141.60 : 467,879.76 = 162,230.85 : x
  2. Step 2: Convert to fraction form
    312,141.60/467,879.76 = 162,230.85/x
  3. Step 3: Cross multiply
    312,141.60x = 467,879.76 × 162,230.85
  4. Step 4: Simplify right side
    312,141.60x = 75,904,531,162.60
  5. Step 5: Solve for x
    x = 75,904,531,162.60/312,141.60
  6. Step 6: Final answer
    x = 243,173.39

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1.5x scale

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.