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Finding the Fourth Proportional to 292.59, 403.74 and 168.23

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Solution

The fourth proportional to 292.59, 403.74 and 168.23 is: 232.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.59 : 403.74 = 168.23 : x
  2. Step 2: Convert to fraction form
    292.59/403.74 = 168.23/x
  3. Step 3: Cross multiply
    292.59x = 403.74 × 168.23
  4. Step 4: Simplify right side
    292.59x = 67,921.18
  5. Step 5: Solve for x
    x = 67,921.18/292.59
  6. Step 6: Final answer
    x = 232.14

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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.