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Finding the Fourth Proportional to 134, 184.96 and 88

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Solution

The fourth proportional to 134, 184.96 and 88 is: 121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134 : 184.96 = 88 : x
  2. Step 2: Convert to fraction form
    134/184.96 = 88/x
  3. Step 3: Cross multiply
    134x = 184.96 × 88
  4. Step 4: Simplify right side
    134x = 16,276.48
  5. Step 5: Solve for x
    x = 16,276.48/134
  6. Step 6: Final answer
    x = 121.47

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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.