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Finding the Fourth Proportional to 194.66, 290.45 and 183

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Solution

The fourth proportional to 194.66, 290.45 and 183 is: 273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.66 : 290.45 = 183 : x
  2. Step 2: Convert to fraction form
    194.66/290.45 = 183/x
  3. Step 3: Cross multiply
    194.66x = 290.45 × 183
  4. Step 4: Simplify right side
    194.66x = 53,151.44
  5. Step 5: Solve for x
    x = 53,151.44/194.66
  6. Step 6: Final answer
    x = 273.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.