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Finding the Fourth Proportional to 361.13, 541.67 and 117.59

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Solution

The fourth proportional to 361.13, 541.67 and 117.59 is: 176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.13 : 541.67 = 117.59 : x
  2. Step 2: Convert to fraction form
    361.13/541.67 = 117.59/x
  3. Step 3: Cross multiply
    361.13x = 541.67 × 117.59
  4. Step 4: Simplify right side
    361.13x = 63,691.68
  5. Step 5: Solve for x
    x = 63,691.68/361.13
  6. Step 6: Final answer
    x = 176.37

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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.