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Finding the Fourth Proportional to 297.36, 410.36 and 173

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Solution

The fourth proportional to 297.36, 410.36 and 173 is: 238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.36 : 410.36 = 173 : x
  2. Step 2: Convert to fraction form
    297.36/410.36 = 173/x
  3. Step 3: Cross multiply
    297.36x = 410.36 × 173
  4. Step 4: Simplify right side
    297.36x = 70,992.28
  5. Step 5: Solve for x
    x = 70,992.28/297.36
  6. Step 6: Final answer
    x = 238.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.