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Finding the Fourth Proportional to 104,572.92, 156,858.02 and 25,687.83

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Solution

The fourth proportional to 104,572.92, 156,858.02 and 25,687.83 is: 38,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,572.92 : 156,858.02 = 25,687.83 : x
  2. Step 2: Convert to fraction form
    104,572.92/156,858.02 = 25,687.83/x
  3. Step 3: Cross multiply
    104,572.92x = 156,858.02 × 25,687.83
  4. Step 4: Simplify right side
    104,572.92x = 4,029,342,708.00
  5. Step 5: Solve for x
    x = 4,029,342,708.00/104,572.92
  6. Step 6: Final answer
    x = 38,531.41

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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.