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Finding the Fourth Proportional to 336.85, 464.86 and 187.48

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Solution

The fourth proportional to 336.85, 464.86 and 187.48 is: 258.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.85 : 464.86 = 187.48 : x
  2. Step 2: Convert to fraction form
    336.85/464.86 = 187.48/x
  3. Step 3: Cross multiply
    336.85x = 464.86 × 187.48
  4. Step 4: Simplify right side
    336.85x = 87,153.30
  5. Step 5: Solve for x
    x = 87,153.30/336.85
  6. Step 6: Final answer
    x = 258.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.