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Finding the Fourth Proportional to 326.32, 489.35 and 95.14

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Solution

The fourth proportional to 326.32, 489.35 and 95.14 is: 142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.32 : 489.35 = 95.14 : x
  2. Step 2: Convert to fraction form
    326.32/489.35 = 95.14/x
  3. Step 3: Cross multiply
    326.32x = 489.35 × 95.14
  4. Step 4: Simplify right side
    326.32x = 46,556.76
  5. Step 5: Solve for x
    x = 46,556.76/326.32
  6. Step 6: Final answer
    x = 142.67

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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.