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Finding the Fourth Proportional to 180,135.89, 248,552.19 and 108,519.86

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Solution

The fourth proportional to 180,135.89, 248,552.19 and 108,519.86 is: 149,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,135.89 : 248,552.19 = 108,519.86 : x
  2. Step 2: Convert to fraction form
    180,135.89/248,552.19 = 108,519.86/x
  3. Step 3: Cross multiply
    180,135.89x = 248,552.19 × 108,519.86
  4. Step 4: Simplify right side
    180,135.89x = 26,972,847,618.73
  5. Step 5: Solve for x
    x = 26,972,847,618.73/180,135.89
  6. Step 6: Final answer
    x = 149,736.12

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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.