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Finding the Fourth Proportional to 295.22, 442.71 and 112.65

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Solution

The fourth proportional to 295.22, 442.71 and 112.65 is: 168.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.22 : 442.71 = 112.65 : x
  2. Step 2: Convert to fraction form
    295.22/442.71 = 112.65/x
  3. Step 3: Cross multiply
    295.22x = 442.71 × 112.65
  4. Step 4: Simplify right side
    295.22x = 49,871.28
  5. Step 5: Solve for x
    x = 49,871.28/295.22
  6. Step 6: Final answer
    x = 168.93

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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.