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Finding the Fourth Proportional to 202,377.72, 303,557.56 and 69,269.88

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Solution

The fourth proportional to 202,377.72, 303,557.56 and 69,269.88 is: 103,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,377.72 : 303,557.56 = 69,269.88 : x
  2. Step 2: Convert to fraction form
    202,377.72/303,557.56 = 69,269.88/x
  3. Step 3: Cross multiply
    202,377.72x = 303,557.56 × 69,269.88
  4. Step 4: Simplify right side
    202,377.72x = 21,027,395,754.29
  5. Step 5: Solve for x
    x = 21,027,395,754.29/202,377.72
  6. Step 6: Final answer
    x = 103,901.73

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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.