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Finding the Fourth Proportional to 194.67, 291.24 and 117.63

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Solution

The fourth proportional to 194.67, 291.24 and 117.63 is: 175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.67 : 291.24 = 117.63 : x
  2. Step 2: Convert to fraction form
    194.67/291.24 = 117.63/x
  3. Step 3: Cross multiply
    194.67x = 291.24 × 117.63
  4. Step 4: Simplify right side
    194.67x = 34,258.56
  5. Step 5: Solve for x
    x = 34,258.56/194.67
  6. Step 6: Final answer
    x = 175.98

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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.