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Finding the Fourth Proportional to 194, 290.90 and 107.34

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Solution

The fourth proportional to 194, 290.90 and 107.34 is: 160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194 : 290.90 = 107.34 : x
  2. Step 2: Convert to fraction form
    194/290.90 = 107.34/x
  3. Step 3: Cross multiply
    194x = 290.90 × 107.34
  4. Step 4: Simplify right side
    194x = 31,225.21
  5. Step 5: Solve for x
    x = 31,225.21/194
  6. Step 6: Final answer
    x = 160.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.