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Finding the Fourth Proportional to 183.67, 253.40 and 109.96

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Solution

The fourth proportional to 183.67, 253.40 and 109.96 is: 151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.67 : 253.40 = 109.96 : x
  2. Step 2: Convert to fraction form
    183.67/253.40 = 109.96/x
  3. Step 3: Cross multiply
    183.67x = 253.40 × 109.96
  4. Step 4: Simplify right side
    183.67x = 27,862.68
  5. Step 5: Solve for x
    x = 27,862.68/183.67
  6. Step 6: Final answer
    x = 151.70

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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.