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Finding the Fourth Proportional to 57,620.56, 86,296.53 and 55,625.08

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Solution

The fourth proportional to 57,620.56, 86,296.53 and 55,625.08 is: 83,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,620.56 : 86,296.53 = 55,625.08 : x
  2. Step 2: Convert to fraction form
    57,620.56/86,296.53 = 55,625.08/x
  3. Step 3: Cross multiply
    57,620.56x = 86,296.53 × 55,625.08
  4. Step 4: Simplify right side
    57,620.56x = 4,800,251,384.97
  5. Step 5: Solve for x
    x = 4,800,251,384.97/57,620.56
  6. Step 6: Final answer
    x = 83,307.96

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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.