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Finding the Fourth Proportional to 187.41, 281.10 and 50.47

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Solution

The fourth proportional to 187.41, 281.10 and 50.47 is: 75.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.41 : 281.10 = 50.47 : x
  2. Step 2: Convert to fraction form
    187.41/281.10 = 50.47/x
  3. Step 3: Cross multiply
    187.41x = 281.10 × 50.47
  4. Step 4: Simplify right side
    187.41x = 14,187.25
  5. Step 5: Solve for x
    x = 14,187.25/187.41
  6. Step 6: Final answer
    x = 75.70

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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.