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Finding the Fourth Proportional to 104,416.70, 156,625.05 and 25,531.70

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Solution

The fourth proportional to 104,416.70, 156,625.05 and 25,531.70 is: 38,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,416.70 : 156,625.05 = 25,531.70 : x
  2. Step 2: Convert to fraction form
    104,416.70/156,625.05 = 25,531.70/x
  3. Step 3: Cross multiply
    104,416.70x = 156,625.05 × 25,531.70
  4. Step 4: Simplify right side
    104,416.70x = 3,998,903,789.09
  5. Step 5: Solve for x
    x = 3,998,903,789.09/104,416.70
  6. Step 6: Final answer
    x = 38,297.55

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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.