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Finding the Fourth Proportional to 294.99, 442.65 and 112.41

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Solution

The fourth proportional to 294.99, 442.65 and 112.41 is: 168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.99 : 442.65 = 112.41 : x
  2. Step 2: Convert to fraction form
    294.99/442.65 = 112.41/x
  3. Step 3: Cross multiply
    294.99x = 442.65 × 112.41
  4. Step 4: Simplify right side
    294.99x = 49,758.29
  5. Step 5: Solve for x
    x = 49,758.29/294.99
  6. Step 6: Final answer
    x = 168.68

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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.