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Finding the Fourth Proportional to 342,183.41, 472,216.19 and 189,231.98

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Solution

The fourth proportional to 342,183.41, 472,216.19 and 189,231.98 is: 261,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,183.41 : 472,216.19 = 189,231.98 : x
  2. Step 2: Convert to fraction form
    342,183.41/472,216.19 = 189,231.98/x
  3. Step 3: Cross multiply
    342,183.41x = 472,216.19 × 189,231.98
  4. Step 4: Simplify right side
    342,183.41x = 89,358,404,621.76
  5. Step 5: Solve for x
    x = 89,358,404,621.76/342,183.41
  6. Step 6: Final answer
    x = 261,141.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.