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Finding the Fourth Proportional to 184.80, 276 and 162.12

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Solution

The fourth proportional to 184.80, 276 and 162.12 is: 242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.80 : 276 = 162.12 : x
  2. Step 2: Convert to fraction form
    184.80/276 = 162.12/x
  3. Step 3: Cross multiply
    184.80x = 276 × 162.12
  4. Step 4: Simplify right side
    184.80x = 44,745.12
  5. Step 5: Solve for x
    x = 44,745.12/184.80
  6. Step 6: Final answer
    x = 242.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.