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Finding the Fourth Proportional to 203,208.80, 304,375.80 and 168,216.80

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Solution

The fourth proportional to 203,208.80, 304,375.80 and 168,216.80 is: 251,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,208.80 : 304,375.80 = 168,216.80 : x
  2. Step 2: Convert to fraction form
    203,208.80/304,375.80 = 168,216.80/x
  3. Step 3: Cross multiply
    203,208.80x = 304,375.80 × 168,216.80
  4. Step 4: Simplify right side
    203,208.80x = 51,201,123,073.44
  5. Step 5: Solve for x
    x = 51,201,123,073.44/203,208.80
  6. Step 6: Final answer
    x = 251,963.12

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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.