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Finding the Fourth Proportional to 362.94, 544.52 and 131.86

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Solution

The fourth proportional to 362.94, 544.52 and 131.86 is: 197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.94 : 544.52 = 131.86 : x
  2. Step 2: Convert to fraction form
    362.94/544.52 = 131.86/x
  3. Step 3: Cross multiply
    362.94x = 544.52 × 131.86
  4. Step 4: Simplify right side
    362.94x = 71,798.35
  5. Step 5: Solve for x
    x = 71,798.35/362.94
  6. Step 6: Final answer
    x = 197.82

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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.