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Finding the Fourth Proportional to 184.37, 276.55 and 76.16

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Solution

The fourth proportional to 184.37, 276.55 and 76.16 is: 114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.37 : 276.55 = 76.16 : x
  2. Step 2: Convert to fraction form
    184.37/276.55 = 76.16/x
  3. Step 3: Cross multiply
    184.37x = 276.55 × 76.16
  4. Step 4: Simplify right side
    184.37x = 21,060.86
  5. Step 5: Solve for x
    x = 21,060.86/184.37
  6. Step 6: Final answer
    x = 114.23

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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.