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Finding the Fourth Proportional to 197.24, 294.44 and 156.60

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Solution

The fourth proportional to 197.24, 294.44 and 156.60 is: 233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.24 : 294.44 = 156.60 : x
  2. Step 2: Convert to fraction form
    197.24/294.44 = 156.60/x
  3. Step 3: Cross multiply
    197.24x = 294.44 × 156.60
  4. Step 4: Simplify right side
    197.24x = 46,108.52
  5. Step 5: Solve for x
    x = 46,108.52/197.24
  6. Step 6: Final answer
    x = 233.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.