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Finding the Fourth Proportional to 183.67, 253.13 and 118.06

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Solution

The fourth proportional to 183.67, 253.13 and 118.06 is: 162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.67 : 253.13 = 118.06 : x
  2. Step 2: Convert to fraction form
    183.67/253.13 = 118.06/x
  3. Step 3: Cross multiply
    183.67x = 253.13 × 118.06
  4. Step 4: Simplify right side
    183.67x = 29,883.30
  5. Step 5: Solve for x
    x = 29,883.30/183.67
  6. Step 6: Final answer
    x = 162.70

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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.