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Finding the Fourth Proportional to 299.94, 449.96 and 117.34

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Solution

The fourth proportional to 299.94, 449.96 and 117.34 is: 176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.94 : 449.96 = 117.34 : x
  2. Step 2: Convert to fraction form
    299.94/449.96 = 117.34/x
  3. Step 3: Cross multiply
    299.94x = 449.96 × 117.34
  4. Step 4: Simplify right side
    299.94x = 52,798.31
  5. Step 5: Solve for x
    x = 52,798.31/299.94
  6. Step 6: Final answer
    x = 176.03

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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.