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Finding the Fourth Proportional to 124.92, 187.16 and 96.22

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Solution

The fourth proportional to 124.92, 187.16 and 96.22 is: 144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.92 : 187.16 = 96.22 : x
  2. Step 2: Convert to fraction form
    124.92/187.16 = 96.22/x
  3. Step 3: Cross multiply
    124.92x = 187.16 × 96.22
  4. Step 4: Simplify right side
    124.92x = 18,008.54
  5. Step 5: Solve for x
    x = 18,008.54/124.92
  6. Step 6: Final answer
    x = 144.16

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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.