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Finding the Fourth Proportional to 273,940.52, 378,081.30 and 166,544.20

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Solution

The fourth proportional to 273,940.52, 378,081.30 and 166,544.20 is: 229,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,940.52 : 378,081.30 = 166,544.20 : x
  2. Step 2: Convert to fraction form
    273,940.52/378,081.30 = 166,544.20/x
  3. Step 3: Cross multiply
    273,940.52x = 378,081.30 × 166,544.20
  4. Step 4: Simplify right side
    273,940.52x = 62,967,247,643.46
  5. Step 5: Solve for x
    x = 62,967,247,643.46/273,940.52
  6. Step 6: Final answer
    x = 229,857.37

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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.