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Finding the Fourth Proportional to 162, 223.56 and 148.23

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Solution

The fourth proportional to 162, 223.56 and 148.23 is: 204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162 : 223.56 = 148.23 : x
  2. Step 2: Convert to fraction form
    162/223.56 = 148.23/x
  3. Step 3: Cross multiply
    162x = 223.56 × 148.23
  4. Step 4: Simplify right side
    162x = 33,138.30
  5. Step 5: Solve for x
    x = 33,138.30/162
  6. Step 6: Final answer
    x = 204.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.