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Finding the Fourth Proportional to 104,563.70, 156,757.34 and 45,354.76

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Solution

The fourth proportional to 104,563.70, 156,757.34 and 45,354.76 is: 67,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,563.70 : 156,757.34 = 45,354.76 : x
  2. Step 2: Convert to fraction form
    104,563.70/156,757.34 = 45,354.76/x
  3. Step 3: Cross multiply
    104,563.70x = 156,757.34 × 45,354.76
  4. Step 4: Simplify right side
    104,563.70x = 7,109,691,533.94
  5. Step 5: Solve for x
    x = 7,109,691,533.94/104,563.70
  6. Step 6: Final answer
    x = 67,993.88

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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.