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Finding the Fourth Proportional to 184.93, 255.20 and 111.23

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Solution

The fourth proportional to 184.93, 255.20 and 111.23 is: 153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.93 : 255.20 = 111.23 : x
  2. Step 2: Convert to fraction form
    184.93/255.20 = 111.23/x
  3. Step 3: Cross multiply
    184.93x = 255.20 × 111.23
  4. Step 4: Simplify right side
    184.93x = 28,385.26
  5. Step 5: Solve for x
    x = 28,385.26/184.93
  6. Step 6: Final answer
    x = 153.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.