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Finding the Fourth Proportional to 324.22, 486.33 and 93.13

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Solution

The fourth proportional to 324.22, 486.33 and 93.13 is: 139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.22 : 486.33 = 93.13 : x
  2. Step 2: Convert to fraction form
    324.22/486.33 = 93.13/x
  3. Step 3: Cross multiply
    324.22x = 486.33 × 93.13
  4. Step 4: Simplify right side
    324.22x = 45,291.91
  5. Step 5: Solve for x
    x = 45,291.91/324.22
  6. Step 6: Final answer
    x = 139.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.