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Finding the Fourth Proportional to 328.26, 492.24 and 97.07

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Solution

The fourth proportional to 328.26, 492.24 and 97.07 is: 145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.26 : 492.24 = 97.07 : x
  2. Step 2: Convert to fraction form
    328.26/492.24 = 97.07/x
  3. Step 3: Cross multiply
    328.26x = 492.24 × 97.07
  4. Step 4: Simplify right side
    328.26x = 47,782.41
  5. Step 5: Solve for x
    x = 47,782.41/328.26
  6. Step 6: Final answer
    x = 145.56

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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.