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Finding the Fourth Proportional to 57,935.46, 86,768.31 and 56,339.37

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Solution

The fourth proportional to 57,935.46, 86,768.31 and 56,339.37 is: 84,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,935.46 : 86,768.31 = 56,339.37 : x
  2. Step 2: Convert to fraction form
    57,935.46/86,768.31 = 56,339.37/x
  3. Step 3: Cross multiply
    57,935.46x = 86,768.31 × 56,339.37
  4. Step 4: Simplify right side
    57,935.46x = 4,888,471,921.36
  5. Step 5: Solve for x
    x = 4,888,471,921.36/57,935.46
  6. Step 6: Final answer
    x = 84,377.89

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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.