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Finding the Fourth Proportional to 335.36, 502.68 and 164

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Solution

The fourth proportional to 335.36, 502.68 and 164 is: 245.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.36 : 502.68 = 164 : x
  2. Step 2: Convert to fraction form
    335.36/502.68 = 164/x
  3. Step 3: Cross multiply
    335.36x = 502.68 × 164
  4. Step 4: Simplify right side
    335.36x = 82,439.52
  5. Step 5: Solve for x
    x = 82,439.52/335.36
  6. Step 6: Final answer
    x = 245.82

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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.