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Finding the Fourth Proportional to 335.56, 503 and 162.18

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Solution

The fourth proportional to 335.56, 503 and 162.18 is: 243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.56 : 503 = 162.18 : x
  2. Step 2: Convert to fraction form
    335.56/503 = 162.18/x
  3. Step 3: Cross multiply
    335.56x = 503 × 162.18
  4. Step 4: Simplify right side
    335.56x = 81,576.54
  5. Step 5: Solve for x
    x = 81,576.54/335.56
  6. Step 6: Final answer
    x = 243.11

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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.