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Finding the Fourth Proportional to 322.92, 484.38 and 117.52

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Solution

The fourth proportional to 322.92, 484.38 and 117.52 is: 176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.92 : 484.38 = 117.52 : x
  2. Step 2: Convert to fraction form
    322.92/484.38 = 117.52/x
  3. Step 3: Cross multiply
    322.92x = 484.38 × 117.52
  4. Step 4: Simplify right side
    322.92x = 56,923.13
  5. Step 5: Solve for x
    x = 56,923.13/322.92
  6. Step 6: Final answer
    x = 176.28

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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.