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Finding the Fourth Proportional to 295.22, 442.84 and 112.70

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Solution

The fourth proportional to 295.22, 442.84 and 112.70 is: 169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.22 : 442.84 = 112.70 : x
  2. Step 2: Convert to fraction form
    295.22/442.84 = 112.70/x
  3. Step 3: Cross multiply
    295.22x = 442.84 × 112.70
  4. Step 4: Simplify right side
    295.22x = 49,908.07
  5. Step 5: Solve for x
    x = 49,908.07/295.22
  6. Step 6: Final answer
    x = 169.05

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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.