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Finding the Fourth Proportional to 202,336.72, 303,475.32 and 80,756.56

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Solution

The fourth proportional to 202,336.72, 303,475.32 and 80,756.56 is: 121,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,336.72 : 303,475.32 = 80,756.56 : x
  2. Step 2: Convert to fraction form
    202,336.72/303,475.32 = 80,756.56/x
  3. Step 3: Cross multiply
    202,336.72x = 303,475.32 × 80,756.56
  4. Step 4: Simplify right side
    202,336.72x = 24,507,622,888.10
  5. Step 5: Solve for x
    x = 24,507,622,888.10/202,336.72
  6. Step 6: Final answer
    x = 121,122.96

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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.