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Finding the Fourth Proportional to 295.41, 442.94 and 112.76

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Solution

The fourth proportional to 295.41, 442.94 and 112.76 is: 169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.41 : 442.94 = 112.76 : x
  2. Step 2: Convert to fraction form
    295.41/442.94 = 112.76/x
  3. Step 3: Cross multiply
    295.41x = 442.94 × 112.76
  4. Step 4: Simplify right side
    295.41x = 49,943.70
  5. Step 5: Solve for x
    x = 49,943.70/295.41
  6. Step 6: Final answer
    x = 169.07

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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.