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Finding the Fourth Proportional to 79,245.73, 118,757.62 and 56,954.53

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Solution

The fourth proportional to 79,245.73, 118,757.62 and 56,954.53 is: 85,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.73 : 118,757.62 = 56,954.53 : x
  2. Step 2: Convert to fraction form
    79,245.73/118,757.62 = 56,954.53/x
  3. Step 3: Cross multiply
    79,245.73x = 118,757.62 × 56,954.53
  4. Step 4: Simplify right side
    79,245.73x = 6,763,784,431.02
  5. Step 5: Solve for x
    x = 6,763,784,431.02/79,245.73
  6. Step 6: Final answer
    x = 85,352.04

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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.