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Finding the Fourth Proportional to 296.38, 444.50 and 113.72

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Solution

The fourth proportional to 296.38, 444.50 and 113.72 is: 170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.38 : 444.50 = 113.72 : x
  2. Step 2: Convert to fraction form
    296.38/444.50 = 113.72/x
  3. Step 3: Cross multiply
    296.38x = 444.50 × 113.72
  4. Step 4: Simplify right side
    296.38x = 50,547.97
  5. Step 5: Solve for x
    x = 50,547.97/296.38
  6. Step 6: Final answer
    x = 170.55

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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.