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Finding the Fourth Proportional to 79,106.20, 118,620.90 and 44,008.60

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Solution

The fourth proportional to 79,106.20, 118,620.90 and 44,008.60 is: 65,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,106.20 : 118,620.90 = 44,008.60 : x
  2. Step 2: Convert to fraction form
    79,106.20/118,620.90 = 44,008.60/x
  3. Step 3: Cross multiply
    79,106.20x = 118,620.90 × 44,008.60
  4. Step 4: Simplify right side
    79,106.20x = 5,220,339,739.74
  5. Step 5: Solve for x
    x = 5,220,339,739.74/79,106.20
  6. Step 6: Final answer
    x = 65,991.54

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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.