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Finding the Fourth Proportional to 92.96, 139.36 and 44.84

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Solution

The fourth proportional to 92.96, 139.36 and 44.84 is: 67.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.96 : 139.36 = 44.84 : x
  2. Step 2: Convert to fraction form
    92.96/139.36 = 44.84/x
  3. Step 3: Cross multiply
    92.96x = 139.36 × 44.84
  4. Step 4: Simplify right side
    92.96x = 6,248.90
  5. Step 5: Solve for x
    x = 6,248.90/92.96
  6. Step 6: Final answer
    x = 67.22

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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.