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Finding the Fourth Proportional to 104,487.89, 156,731.83 and 25,601.43

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Solution

The fourth proportional to 104,487.89, 156,731.83 and 25,601.43 is: 38,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,487.89 : 156,731.83 = 25,601.43 : x
  2. Step 2: Convert to fraction form
    104,487.89/156,731.83 = 25,601.43/x
  3. Step 3: Cross multiply
    104,487.89x = 156,731.83 × 25,601.43
  4. Step 4: Simplify right side
    104,487.89x = 4,012,558,974.52
  5. Step 5: Solve for x
    x = 4,012,558,974.52/104,487.89
  6. Step 6: Final answer
    x = 38,402.14

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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.