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Finding the Fourth Proportional to 164.24, 246.47 and 83.14

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Solution

The fourth proportional to 164.24, 246.47 and 83.14 is: 124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.24 : 246.47 = 83.14 : x
  2. Step 2: Convert to fraction form
    164.24/246.47 = 83.14/x
  3. Step 3: Cross multiply
    164.24x = 246.47 × 83.14
  4. Step 4: Simplify right side
    164.24x = 20,490.48
  5. Step 5: Solve for x
    x = 20,490.48/164.24
  6. Step 6: Final answer
    x = 124.76

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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.