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Finding the Fourth Proportional to 293.91, 441 and 120.69

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Solution

The fourth proportional to 293.91, 441 and 120.69 is: 181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.91 : 441 = 120.69 : x
  2. Step 2: Convert to fraction form
    293.91/441 = 120.69/x
  3. Step 3: Cross multiply
    293.91x = 441 × 120.69
  4. Step 4: Simplify right side
    293.91x = 53,224.29
  5. Step 5: Solve for x
    x = 53,224.29/293.91
  6. Step 6: Final answer
    x = 181.09

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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.