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Finding the Fourth Proportional to 378,578.24, 567,996.96 and 168,362.72

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Solution

The fourth proportional to 378,578.24, 567,996.96 and 168,362.72 is: 252,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,578.24 : 567,996.96 = 168,362.72 : x
  2. Step 2: Convert to fraction form
    378,578.24/567,996.96 = 168,362.72/x
  3. Step 3: Cross multiply
    378,578.24x = 567,996.96 × 168,362.72
  4. Step 4: Simplify right side
    378,578.24x = 95,629,513,137.33
  5. Step 5: Solve for x
    x = 95,629,513,137.33/378,578.24
  6. Step 6: Final answer
    x = 252,601.72

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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.