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Finding the Fourth Proportional to 79,136.77, 118,716.85 and 22,969.60

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Solution

The fourth proportional to 79,136.77, 118,716.85 and 22,969.60 is: 34,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.77 : 118,716.85 = 22,969.60 : x
  2. Step 2: Convert to fraction form
    79,136.77/118,716.85 = 22,969.60/x
  3. Step 3: Cross multiply
    79,136.77x = 118,716.85 × 22,969.60
  4. Step 4: Simplify right side
    79,136.77x = 2,726,878,557.76
  5. Step 5: Solve for x
    x = 2,726,878,557.76/79,136.77
  6. Step 6: Final answer
    x = 34,457.79

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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.