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Finding the Fourth Proportional to 295, 442.48 and 112.32

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Solution

The fourth proportional to 295, 442.48 and 112.32 is: 168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    295 : 442.48 = 112.32 : x
  2. Step 2: Convert to fraction form
    295/442.48 = 112.32/x
  3. Step 3: Cross multiply
    295x = 442.48 × 112.32
  4. Step 4: Simplify right side
    295x = 49,699.35
  5. Step 5: Solve for x
    x = 49,699.35/295
  6. Step 6: Final answer
    x = 168.47

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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.