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Finding the Fourth Proportional to 265,700.28, 398,636.49 and 159,067.56

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Solution

The fourth proportional to 265,700.28, 398,636.49 and 159,067.56 is: 238,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,700.28 : 398,636.49 = 159,067.56 : x
  2. Step 2: Convert to fraction form
    265,700.28/398,636.49 = 159,067.56/x
  3. Step 3: Cross multiply
    265,700.28x = 398,636.49 × 159,067.56
  4. Step 4: Simplify right side
    265,700.28x = 63,410,133,791.26
  5. Step 5: Solve for x
    x = 63,410,133,791.26/265,700.28
  6. Step 6: Final answer
    x = 238,652.87

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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.