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Finding the Fourth Proportional to 296.70, 444.60 and 113.87

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Solution

The fourth proportional to 296.70, 444.60 and 113.87 is: 170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.70 : 444.60 = 113.87 : x
  2. Step 2: Convert to fraction form
    296.70/444.60 = 113.87/x
  3. Step 3: Cross multiply
    296.70x = 444.60 × 113.87
  4. Step 4: Simplify right side
    296.70x = 50,627.71
  5. Step 5: Solve for x
    x = 50,627.71/296.70
  6. Step 6: Final answer
    x = 170.64

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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.