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Finding the Fourth Proportional to 202,895.20, 303,759.60 and 124,163.20

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Solution

The fourth proportional to 202,895.20, 303,759.60 and 124,163.20 is: 185,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,895.20 : 303,759.60 = 124,163.20 : x
  2. Step 2: Convert to fraction form
    202,895.20/303,759.60 = 124,163.20/x
  3. Step 3: Cross multiply
    202,895.20x = 303,759.60 × 124,163.20
  4. Step 4: Simplify right side
    202,895.20x = 37,715,763,966.72
  5. Step 5: Solve for x
    x = 37,715,763,966.72/202,895.20
  6. Step 6: Final answer
    x = 185,887.91

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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.