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Finding the Fourth Proportional to 202,166.20, 303,249.30 and 186,419.80

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Solution

The fourth proportional to 202,166.20, 303,249.30 and 186,419.80 is: 279,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,166.20 : 303,249.30 = 186,419.80 : x
  2. Step 2: Convert to fraction form
    202,166.20/303,249.30 = 186,419.80/x
  3. Step 3: Cross multiply
    202,166.20x = 303,249.30 × 186,419.80
  4. Step 4: Simplify right side
    202,166.20x = 56,531,673,856.14
  5. Step 5: Solve for x
    x = 56,531,673,856.14/202,166.20
  6. Step 6: Final answer
    x = 279,629.70

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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.