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Finding the Fourth Proportional to 156, 234.06 and 154.92

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Solution

The fourth proportional to 156, 234.06 and 154.92 is: 232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156 : 234.06 = 154.92 : x
  2. Step 2: Convert to fraction form
    156/234.06 = 154.92/x
  3. Step 3: Cross multiply
    156x = 234.06 × 154.92
  4. Step 4: Simplify right side
    156x = 36,260.58
  5. Step 5: Solve for x
    x = 36,260.58/156
  6. Step 6: Final answer
    x = 232.44

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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.