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Finding the Fourth Proportional to 361, 541.50 and 175.87

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Solution

The fourth proportional to 361, 541.50 and 175.87 is: 263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    361 : 541.50 = 175.87 : x
  2. Step 2: Convert to fraction form
    361/541.50 = 175.87/x
  3. Step 3: Cross multiply
    361x = 541.50 × 175.87
  4. Step 4: Simplify right side
    361x = 95,233.61
  5. Step 5: Solve for x
    x = 95,233.61/361
  6. Step 6: Final answer
    x = 263.81

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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.