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Finding the Fourth Proportional to 202,313.30, 303,469.95 and 127,517.90

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Solution

The fourth proportional to 202,313.30, 303,469.95 and 127,517.90 is: 191,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,313.30 : 303,469.95 = 127,517.90 : x
  2. Step 2: Convert to fraction form
    202,313.30/303,469.95 = 127,517.90/x
  3. Step 3: Cross multiply
    202,313.30x = 303,469.95 × 127,517.90
  4. Step 4: Simplify right side
    202,313.30x = 38,697,850,737.11
  5. Step 5: Solve for x
    x = 38,697,850,737.11/202,313.30
  6. Step 6: Final answer
    x = 191,276.85

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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.