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Finding the Fourth Proportional to 182.60, 251.99 and 112.67

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Solution

The fourth proportional to 182.60, 251.99 and 112.67 is: 155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.60 : 251.99 = 112.67 : x
  2. Step 2: Convert to fraction form
    182.60/251.99 = 112.67/x
  3. Step 3: Cross multiply
    182.60x = 251.99 × 112.67
  4. Step 4: Simplify right side
    182.60x = 28,391.71
  5. Step 5: Solve for x
    x = 28,391.71/182.60
  6. Step 6: Final answer
    x = 155.49

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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.