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Finding the Fourth Proportional to 57,927.44, 86,668.14 and 53,728.40

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Solution

The fourth proportional to 57,927.44, 86,668.14 and 53,728.40 is: 80,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927.44 : 86,668.14 = 53,728.40 : x
  2. Step 2: Convert to fraction form
    57,927.44/86,668.14 = 53,728.40/x
  3. Step 3: Cross multiply
    57,927.44x = 86,668.14 × 53,728.40
  4. Step 4: Simplify right side
    57,927.44x = 4,656,540,493.18
  5. Step 5: Solve for x
    x = 4,656,540,493.18/57,927.44
  6. Step 6: Final answer
    x = 80,385.75

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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.