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Finding the Fourth Proportional to 292.88, 404.15 and 168.53

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Solution

The fourth proportional to 292.88, 404.15 and 168.53 is: 232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.88 : 404.15 = 168.53 : x
  2. Step 2: Convert to fraction form
    292.88/404.15 = 168.53/x
  3. Step 3: Cross multiply
    292.88x = 404.15 × 168.53
  4. Step 4: Simplify right side
    292.88x = 68,111.40
  5. Step 5: Solve for x
    x = 68,111.40/292.88
  6. Step 6: Final answer
    x = 232.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.