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Finding the Fourth Proportional to 364.12, 546.22 and 120.59

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Solution

The fourth proportional to 364.12, 546.22 and 120.59 is: 180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.12 : 546.22 = 120.59 : x
  2. Step 2: Convert to fraction form
    364.12/546.22 = 120.59/x
  3. Step 3: Cross multiply
    364.12x = 546.22 × 120.59
  4. Step 4: Simplify right side
    364.12x = 65,867.80
  5. Step 5: Solve for x
    x = 65,867.80/364.12
  6. Step 6: Final answer
    x = 180.90

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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.