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Finding the Fourth Proportional to 308.88, 463.34 and 92.44

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Solution

The fourth proportional to 308.88, 463.34 and 92.44 is: 138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.88 : 463.34 = 92.44 : x
  2. Step 2: Convert to fraction form
    308.88/463.34 = 92.44/x
  3. Step 3: Cross multiply
    308.88x = 463.34 × 92.44
  4. Step 4: Simplify right side
    308.88x = 42,831.15
  5. Step 5: Solve for x
    x = 42,831.15/308.88
  6. Step 6: Final answer
    x = 138.67

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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.