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Finding the Fourth Proportional to 331,057.60, 496,791.60 and 173,399.20

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Solution

The fourth proportional to 331,057.60, 496,791.60 and 173,399.20 is: 260,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,057.60 : 496,791.60 = 173,399.20 : x
  2. Step 2: Convert to fraction form
    331,057.60/496,791.60 = 173,399.20/x
  3. Step 3: Cross multiply
    331,057.60x = 496,791.60 × 173,399.20
  4. Step 4: Simplify right side
    331,057.60x = 86,143,266,006.72
  5. Step 5: Solve for x
    x = 86,143,266,006.72/331,057.60
  6. Step 6: Final answer
    x = 260,206.28

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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.