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Finding the Fourth Proportional to 202,310.55, 303,465.83 and 69,170.85

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Solution

The fourth proportional to 202,310.55, 303,465.83 and 69,170.85 is: 103,756.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,310.55 : 303,465.83 = 69,170.85 : x
  2. Step 2: Convert to fraction form
    202,310.55/303,465.83 = 69,170.85/x
  3. Step 3: Cross multiply
    202,310.55x = 303,465.83 × 69,170.85
  4. Step 4: Simplify right side
    202,310.55x = 20,990,989,061.20
  5. Step 5: Solve for x
    x = 20,990,989,061.20/202,310.55
  6. Step 6: Final answer
    x = 103,756.28

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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.