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Finding the Fourth Proportional to 183.98, 253.93 and 140.24

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Solution

The fourth proportional to 183.98, 253.93 and 140.24 is: 193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.98 : 253.93 = 140.24 : x
  2. Step 2: Convert to fraction form
    183.98/253.93 = 140.24/x
  3. Step 3: Cross multiply
    183.98x = 253.93 × 140.24
  4. Step 4: Simplify right side
    183.98x = 35,611.14
  5. Step 5: Solve for x
    x = 35,611.14/183.98
  6. Step 6: Final answer
    x = 193.56

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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.