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Finding the Fourth Proportional to 265,286.08, 397,679 and 132,040.36

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Solution

The fourth proportional to 265,286.08, 397,679 and 132,040.36 is: 197,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,286.08 : 397,679 = 132,040.36 : x
  2. Step 2: Convert to fraction form
    265,286.08/397,679 = 132,040.36/x
  3. Step 3: Cross multiply
    265,286.08x = 397,679 × 132,040.36
  4. Step 4: Simplify right side
    265,286.08x = 52,509,678,324.44
  5. Step 5: Solve for x
    x = 52,509,678,324.44/265,286.08
  6. Step 6: Final answer
    x = 197,936.05

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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.