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Finding the Fourth Proportional to 202,514.92, 303,439.55 and 69,322.52

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Solution

The fourth proportional to 202,514.92, 303,439.55 and 69,322.52 is: 103,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,514.92 : 303,439.55 = 69,322.52 : x
  2. Step 2: Convert to fraction form
    202,514.92/303,439.55 = 69,322.52/x
  3. Step 3: Cross multiply
    202,514.92x = 303,439.55 × 69,322.52
  4. Step 4: Simplify right side
    202,514.92x = 21,035,193,927.05
  5. Step 5: Solve for x
    x = 21,035,193,927.05/202,514.92
  6. Step 6: Final answer
    x = 103,869.85

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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.