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Finding the Fourth Proportional to 57,914.54, 79,880.87 and 53,149.87

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Solution

The fourth proportional to 57,914.54, 79,880.87 and 53,149.87 is: 73,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,914.54 : 79,880.87 = 53,149.87 : x
  2. Step 2: Convert to fraction form
    57,914.54/79,880.87 = 53,149.87/x
  3. Step 3: Cross multiply
    57,914.54x = 79,880.87 × 53,149.87
  4. Step 4: Simplify right side
    57,914.54x = 4,245,657,855.99
  5. Step 5: Solve for x
    x = 4,245,657,855.99/57,914.54
  6. Step 6: Final answer
    x = 73,309.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.