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Finding the Fourth Proportional to 297.14, 445.38 and 114.45

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Solution

The fourth proportional to 297.14, 445.38 and 114.45 is: 171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.14 : 445.38 = 114.45 : x
  2. Step 2: Convert to fraction form
    297.14/445.38 = 114.45/x
  3. Step 3: Cross multiply
    297.14x = 445.38 × 114.45
  4. Step 4: Simplify right side
    297.14x = 50,973.74
  5. Step 5: Solve for x
    x = 50,973.74/297.14
  6. Step 6: Final answer
    x = 171.55

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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.