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Finding the Fourth Proportional to 202,199.40, 303,517.80 and 113,625.90

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Solution

The fourth proportional to 202,199.40, 303,517.80 and 113,625.90 is: 170,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,199.40 : 303,517.80 = 113,625.90 : x
  2. Step 2: Convert to fraction form
    202,199.40/303,517.80 = 113,625.90/x
  3. Step 3: Cross multiply
    202,199.40x = 303,517.80 × 113,625.90
  4. Step 4: Simplify right side
    202,199.40x = 34,487,483,191.02
  5. Step 5: Solve for x
    x = 34,487,483,191.02/202,199.40
  6. Step 6: Final answer
    x = 170,561.75

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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.