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Finding the Fourth Proportional to 202,316.40, 303,231.60 and 83,926.80

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Solution

The fourth proportional to 202,316.40, 303,231.60 and 83,926.80 is: 125,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,316.40 : 303,231.60 = 83,926.80 : x
  2. Step 2: Convert to fraction form
    202,316.40/303,231.60 = 83,926.80/x
  3. Step 3: Cross multiply
    202,316.40x = 303,231.60 × 83,926.80
  4. Step 4: Simplify right side
    202,316.40x = 25,449,257,846.88
  5. Step 5: Solve for x
    x = 25,449,257,846.88/202,316.40
  6. Step 6: Final answer
    x = 125,789.40

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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.