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Finding the Fourth Proportional to 147,295.50, 203,272.11 and 80,231.82

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Solution

The fourth proportional to 147,295.50, 203,272.11 and 80,231.82 is: 110,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,295.50 : 203,272.11 = 80,231.82 : x
  2. Step 2: Convert to fraction form
    147,295.50/203,272.11 = 80,231.82/x
  3. Step 3: Cross multiply
    147,295.50x = 203,272.11 × 80,231.82
  4. Step 4: Simplify right side
    147,295.50x = 16,308,891,340.54
  5. Step 5: Solve for x
    x = 16,308,891,340.54/147,295.50
  6. Step 6: Final answer
    x = 110,722.26

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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.