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Finding the Fourth Proportional to 180.44, 249 and 114.98

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Solution

The fourth proportional to 180.44, 249 and 114.98 is: 158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.44 : 249 = 114.98 : x
  2. Step 2: Convert to fraction form
    180.44/249 = 114.98/x
  3. Step 3: Cross multiply
    180.44x = 249 × 114.98
  4. Step 4: Simplify right side
    180.44x = 28,630.02
  5. Step 5: Solve for x
    x = 28,630.02/180.44
  6. Step 6: Final answer
    x = 158.67

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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.