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Finding the Fourth Proportional to 203,691.28, 305,536.38 and 114,904.48

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Solution

The fourth proportional to 203,691.28, 305,536.38 and 114,904.48 is: 172,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,691.28 : 305,536.38 = 114,904.48 : x
  2. Step 2: Convert to fraction form
    203,691.28/305,536.38 = 114,904.48/x
  3. Step 3: Cross multiply
    203,691.28x = 305,536.38 × 114,904.48
  4. Step 4: Simplify right side
    203,691.28x = 35,107,498,864.98
  5. Step 5: Solve for x
    x = 35,107,498,864.98/203,691.28
  6. Step 6: Final answer
    x = 172,356.42

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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.