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Finding the Fourth Proportional to 194.48, 291.67 and 117.47

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Solution

The fourth proportional to 194.48, 291.67 and 117.47 is: 176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.48 : 291.67 = 117.47 : x
  2. Step 2: Convert to fraction form
    194.48/291.67 = 117.47/x
  3. Step 3: Cross multiply
    194.48x = 291.67 × 117.47
  4. Step 4: Simplify right side
    194.48x = 34,260.72
  5. Step 5: Solve for x
    x = 34,260.72/194.48
  6. Step 6: Final answer
    x = 176.17

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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.