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Finding the Fourth Proportional to 174.84, 261.70 and 93.43

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Solution

The fourth proportional to 174.84, 261.70 and 93.43 is: 139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.84 : 261.70 = 93.43 : x
  2. Step 2: Convert to fraction form
    174.84/261.70 = 93.43/x
  3. Step 3: Cross multiply
    174.84x = 261.70 × 93.43
  4. Step 4: Simplify right side
    174.84x = 24,450.63
  5. Step 5: Solve for x
    x = 24,450.63/174.84
  6. Step 6: Final answer
    x = 139.85

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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.