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Finding the Fourth Proportional to 179.79, 269.66 and 64.22

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Solution

The fourth proportional to 179.79, 269.66 and 64.22 is: 96.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.79 : 269.66 = 64.22 : x
  2. Step 2: Convert to fraction form
    179.79/269.66 = 64.22/x
  3. Step 3: Cross multiply
    179.79x = 269.66 × 64.22
  4. Step 4: Simplify right side
    179.79x = 17,316.91
  5. Step 5: Solve for x
    x = 17,316.91/179.79
  6. Step 6: Final answer
    x = 96.32

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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.