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Finding the Fourth Proportional to 202,167.20, 303,250.80 and 186,420.80

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Solution

The fourth proportional to 202,167.20, 303,250.80 and 186,420.80 is: 279,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,167.20 : 303,250.80 = 186,420.80 : x
  2. Step 2: Convert to fraction form
    202,167.20/303,250.80 = 186,420.80/x
  3. Step 3: Cross multiply
    202,167.20x = 303,250.80 × 186,420.80
  4. Step 4: Simplify right side
    202,167.20x = 56,532,256,736.64
  5. Step 5: Solve for x
    x = 56,532,256,736.64/202,167.20
  6. Step 6: Final answer
    x = 279,631.20

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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.