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Finding the Fourth Proportional to 331,147.44, 495,195.12 and 245,919.24

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Solution

The fourth proportional to 331,147.44, 495,195.12 and 245,919.24 is: 367,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,147.44 : 495,195.12 = 245,919.24 : x
  2. Step 2: Convert to fraction form
    331,147.44/495,195.12 = 245,919.24/x
  3. Step 3: Cross multiply
    331,147.44x = 495,195.12 × 245,919.24
  4. Step 4: Simplify right side
    331,147.44x = 121,778,007,562.11
  5. Step 5: Solve for x
    x = 121,778,007,562.11/331,147.44
  6. Step 6: Final answer
    x = 367,745.58

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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.