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Finding the Fourth Proportional to 104,608.99, 156,912.11 and 25,723.90

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Solution

The fourth proportional to 104,608.99, 156,912.11 and 25,723.90 is: 38,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608.99 : 156,912.11 = 25,723.90 : x
  2. Step 2: Convert to fraction form
    104,608.99/156,912.11 = 25,723.90/x
  3. Step 3: Cross multiply
    104,608.99x = 156,912.11 × 25,723.90
  4. Step 4: Simplify right side
    104,608.99x = 4,036,391,426.43
  5. Step 5: Solve for x
    x = 4,036,391,426.43/104,608.99
  6. Step 6: Final answer
    x = 38,585.51

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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.