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Finding the Fourth Proportional to 298.89, 448.43 and 116.24

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Solution

The fourth proportional to 298.89, 448.43 and 116.24 is: 174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.89 : 448.43 = 116.24 : x
  2. Step 2: Convert to fraction form
    298.89/448.43 = 116.24/x
  3. Step 3: Cross multiply
    298.89x = 448.43 × 116.24
  4. Step 4: Simplify right side
    298.89x = 52,124.36
  5. Step 5: Solve for x
    x = 52,124.36/298.89
  6. Step 6: Final answer
    x = 174.39

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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.