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Finding the Fourth Proportional to 194.90, 292.29 and 160.57

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Solution

The fourth proportional to 194.90, 292.29 and 160.57 is: 240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.90 : 292.29 = 160.57 : x
  2. Step 2: Convert to fraction form
    194.90/292.29 = 160.57/x
  3. Step 3: Cross multiply
    194.90x = 292.29 × 160.57
  4. Step 4: Simplify right side
    194.90x = 46,933.13
  5. Step 5: Solve for x
    x = 46,933.13/194.90
  6. Step 6: Final answer
    x = 240.81

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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.