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Finding the Fourth Proportional to 298.01, 446.99 and 92.58

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Solution

The fourth proportional to 298.01, 446.99 and 92.58 is: 138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.01 : 446.99 = 92.58 : x
  2. Step 2: Convert to fraction form
    298.01/446.99 = 92.58/x
  3. Step 3: Cross multiply
    298.01x = 446.99 × 92.58
  4. Step 4: Simplify right side
    298.01x = 41,382.33
  5. Step 5: Solve for x
    x = 41,382.33/298.01
  6. Step 6: Final answer
    x = 138.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.