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Finding the Fourth Proportional to 184.80, 254.93 and 111.09

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Solution

The fourth proportional to 184.80, 254.93 and 111.09 is: 153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.80 : 254.93 = 111.09 : x
  2. Step 2: Convert to fraction form
    184.80/254.93 = 111.09/x
  3. Step 3: Cross multiply
    184.80x = 254.93 × 111.09
  4. Step 4: Simplify right side
    184.80x = 28,319.62
  5. Step 5: Solve for x
    x = 28,319.62/184.80
  6. Step 6: Final answer
    x = 153.24

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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.