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Finding the Fourth Proportional to 224.55, 336.24 and 156.24

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Solution

The fourth proportional to 224.55, 336.24 and 156.24 is: 233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.55 : 336.24 = 156.24 : x
  2. Step 2: Convert to fraction form
    224.55/336.24 = 156.24/x
  3. Step 3: Cross multiply
    224.55x = 336.24 × 156.24
  4. Step 4: Simplify right side
    224.55x = 52,534.14
  5. Step 5: Solve for x
    x = 52,534.14/224.55
  6. Step 6: Final answer
    x = 233.95

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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.