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Finding the Fourth Proportional to 72,201.29, 108,236.32 and 32,736.87

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Solution

The fourth proportional to 72,201.29, 108,236.32 and 32,736.87 is: 49,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,201.29 : 108,236.32 = 32,736.87 : x
  2. Step 2: Convert to fraction form
    72,201.29/108,236.32 = 32,736.87/x
  3. Step 3: Cross multiply
    72,201.29x = 108,236.32 × 32,736.87
  4. Step 4: Simplify right side
    72,201.29x = 3,543,318,255.28
  5. Step 5: Solve for x
    x = 3,543,318,255.28/72,201.29
  6. Step 6: Final answer
    x = 49,075.56

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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.