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Finding the Fourth Proportional to 297.93, 446.76 and 115.32

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Solution

The fourth proportional to 297.93, 446.76 and 115.32 is: 172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.93 : 446.76 = 115.32 : x
  2. Step 2: Convert to fraction form
    297.93/446.76 = 115.32/x
  3. Step 3: Cross multiply
    297.93x = 446.76 × 115.32
  4. Step 4: Simplify right side
    297.93x = 51,520.36
  5. Step 5: Solve for x
    x = 51,520.36/297.93
  6. Step 6: Final answer
    x = 172.93

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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.