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Finding the Fourth Proportional to 79,309.53, 118,858.59 and 41,860.80

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Solution

The fourth proportional to 79,309.53, 118,858.59 and 41,860.80 is: 62,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.53 : 118,858.59 = 41,860.80 : x
  2. Step 2: Convert to fraction form
    79,309.53/118,858.59 = 41,860.80/x
  3. Step 3: Cross multiply
    79,309.53x = 118,858.59 × 41,860.80
  4. Step 4: Simplify right side
    79,309.53x = 4,975,515,664.27
  5. Step 5: Solve for x
    x = 4,975,515,664.27/79,309.53
  6. Step 6: Final answer
    x = 62,735.41

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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.