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Finding the Fourth Proportional to 104,558.60, 156,780.30 and 34,401.80

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Solution

The fourth proportional to 104,558.60, 156,780.30 and 34,401.80 is: 51,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,558.60 : 156,780.30 = 34,401.80 : x
  2. Step 2: Convert to fraction form
    104,558.60/156,780.30 = 34,401.80/x
  3. Step 3: Cross multiply
    104,558.60x = 156,780.30 × 34,401.80
  4. Step 4: Simplify right side
    104,558.60x = 5,393,524,524.54
  5. Step 5: Solve for x
    x = 5,393,524,524.54/104,558.60
  6. Step 6: Final answer
    x = 51,583.75

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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.