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Finding the Fourth Proportional to 297.36, 446.13 and 91.93

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Solution

The fourth proportional to 297.36, 446.13 and 91.93 is: 137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.36 : 446.13 = 91.93 : x
  2. Step 2: Convert to fraction form
    297.36/446.13 = 91.93/x
  3. Step 3: Cross multiply
    297.36x = 446.13 × 91.93
  4. Step 4: Simplify right side
    297.36x = 41,010.50
  5. Step 5: Solve for x
    x = 41,010.50/297.36
  6. Step 6: Final answer
    x = 137.92

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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.