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Finding the Fourth Proportional to 184.99, 277.60 and 75.28

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Solution

The fourth proportional to 184.99, 277.60 and 75.28 is: 112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.99 : 277.60 = 75.28 : x
  2. Step 2: Convert to fraction form
    184.99/277.60 = 75.28/x
  3. Step 3: Cross multiply
    184.99x = 277.60 × 75.28
  4. Step 4: Simplify right side
    184.99x = 20,897.73
  5. Step 5: Solve for x
    x = 20,897.73/184.99
  6. Step 6: Final answer
    x = 112.97

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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.