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Finding the Fourth Proportional to 154.81, 232.22 and 46.60

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Solution

The fourth proportional to 154.81, 232.22 and 46.60 is: 69.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.81 : 232.22 = 46.60 : x
  2. Step 2: Convert to fraction form
    154.81/232.22 = 46.60/x
  3. Step 3: Cross multiply
    154.81x = 232.22 × 46.60
  4. Step 4: Simplify right side
    154.81x = 10,820.06
  5. Step 5: Solve for x
    x = 10,820.06/154.81
  6. Step 6: Final answer
    x = 69.89

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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.