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Finding the Fourth Proportional to 201,305.28, 301,770.20 and 68,092.85

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Solution

The fourth proportional to 201,305.28, 301,770.20 and 68,092.85 is: 102,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,305.28 : 301,770.20 = 68,092.85 : x
  2. Step 2: Convert to fraction form
    201,305.28/301,770.20 = 68,092.85/x
  3. Step 3: Cross multiply
    201,305.28x = 301,770.20 × 68,092.85
  4. Step 4: Simplify right side
    201,305.28x = 20,548,391,113.75
  5. Step 5: Solve for x
    x = 20,548,391,113.75/201,305.28
  6. Step 6: Final answer
    x = 102,075.77

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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.