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Finding the Fourth Proportional to 122.99, 184.44 and 36.32

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Solution

The fourth proportional to 122.99, 184.44 and 36.32 is: 54.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.99 : 184.44 = 36.32 : x
  2. Step 2: Convert to fraction form
    122.99/184.44 = 36.32/x
  3. Step 3: Cross multiply
    122.99x = 184.44 × 36.32
  4. Step 4: Simplify right side
    122.99x = 6,698.86
  5. Step 5: Solve for x
    x = 6,698.86/122.99
  6. Step 6: Final answer
    x = 54.47

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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.