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Finding the Fourth Proportional to 158.92, 238.37 and 50.70

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Solution

The fourth proportional to 158.92, 238.37 and 50.70 is: 76.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.92 : 238.37 = 50.70 : x
  2. Step 2: Convert to fraction form
    158.92/238.37 = 50.70/x
  3. Step 3: Cross multiply
    158.92x = 238.37 × 50.70
  4. Step 4: Simplify right side
    158.92x = 12,085.36
  5. Step 5: Solve for x
    x = 12,085.36/158.92
  6. Step 6: Final answer
    x = 76.05

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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.