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Finding the Fourth Proportional to 202,200.69, 303,336.71 and 69,049.74

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Solution

The fourth proportional to 202,200.69, 303,336.71 and 69,049.74 is: 103,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,200.69 : 303,336.71 = 69,049.74 : x
  2. Step 2: Convert to fraction form
    202,200.69/303,336.71 = 69,049.74/x
  3. Step 3: Cross multiply
    202,200.69x = 303,336.71 × 69,049.74
  4. Step 4: Simplify right side
    202,200.69x = 20,945,320,612.71
  5. Step 5: Solve for x
    x = 20,945,320,612.71/202,200.69
  6. Step 6: Final answer
    x = 103,586.79

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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.