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Finding the Fourth Proportional to 104,680.56, 157,019.43 and 25,795.47

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Solution

The fourth proportional to 104,680.56, 157,019.43 and 25,795.47 is: 38,692.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,680.56 : 157,019.43 = 25,795.47 : x
  2. Step 2: Convert to fraction form
    104,680.56/157,019.43 = 25,795.47/x
  3. Step 3: Cross multiply
    104,680.56x = 157,019.43 × 25,795.47
  4. Step 4: Simplify right side
    104,680.56x = 4,050,389,995.98
  5. Step 5: Solve for x
    x = 4,050,389,995.98/104,680.56
  6. Step 6: Final answer
    x = 38,692.86

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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.