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Finding the Fourth Proportional to 104,651.70, 156,976.14 and 25,766.58

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Solution

The fourth proportional to 104,651.70, 156,976.14 and 25,766.58 is: 38,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,651.70 : 156,976.14 = 25,766.58 : x
  2. Step 2: Convert to fraction form
    104,651.70/156,976.14 = 25,766.58/x
  3. Step 3: Cross multiply
    104,651.70x = 156,976.14 × 25,766.58
  4. Step 4: Simplify right side
    104,651.70x = 4,044,738,269.40
  5. Step 5: Solve for x
    x = 4,044,738,269.40/104,651.70
  6. Step 6: Final answer
    x = 38,649.52

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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.