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Finding the Fourth Proportional to 57,080.94, 85,629.14 and 53,933.16

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Solution

The fourth proportional to 57,080.94, 85,629.14 and 53,933.16 is: 80,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,080.94 : 85,629.14 = 53,933.16 : x
  2. Step 2: Convert to fraction form
    57,080.94/85,629.14 = 53,933.16/x
  3. Step 3: Cross multiply
    57,080.94x = 85,629.14 × 53,933.16
  4. Step 4: Simplify right side
    57,080.94x = 4,618,250,108.28
  5. Step 5: Solve for x
    x = 4,618,250,108.28/57,080.94
  6. Step 6: Final answer
    x = 80,907.04

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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.