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Finding the Fourth Proportional to 202,340.80, 303,856.80 and 132,529.60

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Solution

The fourth proportional to 202,340.80, 303,856.80 and 132,529.60 is: 199,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,340.80 : 303,856.80 = 132,529.60 : x
  2. Step 2: Convert to fraction form
    202,340.80/303,856.80 = 132,529.60/x
  3. Step 3: Cross multiply
    202,340.80x = 303,856.80 × 132,529.60
  4. Step 4: Simplify right side
    202,340.80x = 40,270,020,161.28
  5. Step 5: Solve for x
    x = 40,270,020,161.28/202,340.80
  6. Step 6: Final answer
    x = 199,020.76

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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.