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Finding the Fourth Proportional to 283.12, 424.44 and 112

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Solution

The fourth proportional to 283.12, 424.44 and 112 is: 167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.12 : 424.44 = 112 : x
  2. Step 2: Convert to fraction form
    283.12/424.44 = 112/x
  3. Step 3: Cross multiply
    283.12x = 424.44 × 112
  4. Step 4: Simplify right side
    283.12x = 47,537.28
  5. Step 5: Solve for x
    x = 47,537.28/283.12
  6. Step 6: Final answer
    x = 167.91

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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.