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Finding the Fourth Proportional to 79,074.73, 118,480.88 and 55,651.96

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Solution

The fourth proportional to 79,074.73, 118,480.88 and 55,651.96 is: 83,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,074.73 : 118,480.88 = 55,651.96 : x
  2. Step 2: Convert to fraction form
    79,074.73/118,480.88 = 55,651.96/x
  3. Step 3: Cross multiply
    79,074.73x = 118,480.88 × 55,651.96
  4. Step 4: Simplify right side
    79,074.73x = 6,593,693,168.71
  5. Step 5: Solve for x
    x = 6,593,693,168.71/79,074.73
  6. Step 6: Final answer
    x = 83,385.59

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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.