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Finding the Fourth Proportional to 122.02, 183.09 and 44.98

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Solution

The fourth proportional to 122.02, 183.09 and 44.98 is: 67.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.02 : 183.09 = 44.98 : x
  2. Step 2: Convert to fraction form
    122.02/183.09 = 44.98/x
  3. Step 3: Cross multiply
    122.02x = 183.09 × 44.98
  4. Step 4: Simplify right side
    122.02x = 8,235.39
  5. Step 5: Solve for x
    x = 8,235.39/122.02
  6. Step 6: Final answer
    x = 67.49

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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.