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Finding the Fourth Proportional to 295.96, 444.18 and 142

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Solution

The fourth proportional to 295.96, 444.18 and 142 is: 213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.96 : 444.18 = 142 : x
  2. Step 2: Convert to fraction form
    295.96/444.18 = 142/x
  3. Step 3: Cross multiply
    295.96x = 444.18 × 142
  4. Step 4: Simplify right side
    295.96x = 63,073.56
  5. Step 5: Solve for x
    x = 63,073.56/295.96
  6. Step 6: Final answer
    x = 213.12

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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.