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Finding the Fourth Proportional to 297.51, 445.89 and 160.28

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Solution

The fourth proportional to 297.51, 445.89 and 160.28 is: 240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.51 : 445.89 = 160.28 : x
  2. Step 2: Convert to fraction form
    297.51/445.89 = 160.28/x
  3. Step 3: Cross multiply
    297.51x = 445.89 × 160.28
  4. Step 4: Simplify right side
    297.51x = 71,465.02
  5. Step 5: Solve for x
    x = 71,465.02/297.51
  6. Step 6: Final answer
    x = 240.21

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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.