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Finding the Fourth Proportional to 295.29, 442.95 and 112.66

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Solution

The fourth proportional to 295.29, 442.95 and 112.66 is: 168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.29 : 442.95 = 112.66 : x
  2. Step 2: Convert to fraction form
    295.29/442.95 = 112.66/x
  3. Step 3: Cross multiply
    295.29x = 442.95 × 112.66
  4. Step 4: Simplify right side
    295.29x = 49,901.22
  5. Step 5: Solve for x
    x = 49,901.22/295.29
  6. Step 6: Final answer
    x = 168.99

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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.