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Finding the Fourth Proportional to 167.94, 252.94 and 127.64

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Solution

The fourth proportional to 167.94, 252.94 and 127.64 is: 192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.94 : 252.94 = 127.64 : x
  2. Step 2: Convert to fraction form
    167.94/252.94 = 127.64/x
  3. Step 3: Cross multiply
    167.94x = 252.94 × 127.64
  4. Step 4: Simplify right side
    167.94x = 32,285.81
  5. Step 5: Solve for x
    x = 32,285.81/167.94
  6. Step 6: Final answer
    x = 192.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.