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Finding the Fourth Proportional to 204.88, 282.74 and 116.36

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Solution

The fourth proportional to 204.88, 282.74 and 116.36 is: 160.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.88 : 282.74 = 116.36 : x
  2. Step 2: Convert to fraction form
    204.88/282.74 = 116.36/x
  3. Step 3: Cross multiply
    204.88x = 282.74 × 116.36
  4. Step 4: Simplify right side
    204.88x = 32,899.63
  5. Step 5: Solve for x
    x = 32,899.63/204.88
  6. Step 6: Final answer
    x = 160.58

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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.