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Finding the Fourth Proportional to 183.75, 275.42 and 92.53

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Solution

The fourth proportional to 183.75, 275.42 and 92.53 is: 138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.75 : 275.42 = 92.53 : x
  2. Step 2: Convert to fraction form
    183.75/275.42 = 92.53/x
  3. Step 3: Cross multiply
    183.75x = 275.42 × 92.53
  4. Step 4: Simplify right side
    183.75x = 25,483.24
  5. Step 5: Solve for x
    x = 25,483.24/183.75
  6. Step 6: Final answer
    x = 138.68

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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.