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Finding the Fourth Proportional to 202,225.60, 303,338.40 and 131,723.20

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Solution

The fourth proportional to 202,225.60, 303,338.40 and 131,723.20 is: 197,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,225.60 : 303,338.40 = 131,723.20 : x
  2. Step 2: Convert to fraction form
    202,225.60/303,338.40 = 131,723.20/x
  3. Step 3: Cross multiply
    202,225.60x = 303,338.40 × 131,723.20
  4. Step 4: Simplify right side
    202,225.60x = 39,956,704,730.88
  5. Step 5: Solve for x
    x = 39,956,704,730.88/202,225.60
  6. Step 6: Final answer
    x = 197,584.80

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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.