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Finding the Fourth Proportional to 202,057.26, 303,074.88 and 61,815.87

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Solution

The fourth proportional to 202,057.26, 303,074.88 and 61,815.87 is: 92,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,057.26 : 303,074.88 = 61,815.87 : x
  2. Step 2: Convert to fraction form
    202,057.26/303,074.88 = 61,815.87/x
  3. Step 3: Cross multiply
    202,057.26x = 303,074.88 × 61,815.87
  4. Step 4: Simplify right side
    202,057.26x = 18,734,837,382.35
  5. Step 5: Solve for x
    x = 18,734,837,382.35/202,057.26
  6. Step 6: Final answer
    x = 92,720.44

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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.