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Finding the Fourth Proportional to 162.39, 224.07 and 96.93

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Solution

The fourth proportional to 162.39, 224.07 and 96.93 is: 133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.39 : 224.07 = 96.93 : x
  2. Step 2: Convert to fraction form
    162.39/224.07 = 96.93/x
  3. Step 3: Cross multiply
    162.39x = 224.07 × 96.93
  4. Step 4: Simplify right side
    162.39x = 21,719.11
  5. Step 5: Solve for x
    x = 21,719.11/162.39
  6. Step 6: Final answer
    x = 133.75

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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.