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Finding the Fourth Proportional to 162.01, 223.14 and 118.27

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Solution

The fourth proportional to 162.01, 223.14 and 118.27 is: 162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.01 : 223.14 = 118.27 : x
  2. Step 2: Convert to fraction form
    162.01/223.14 = 118.27/x
  3. Step 3: Cross multiply
    162.01x = 223.14 × 118.27
  4. Step 4: Simplify right side
    162.01x = 26,390.77
  5. Step 5: Solve for x
    x = 26,390.77/162.01
  6. Step 6: Final answer
    x = 162.90

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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.