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Finding the Fourth Proportional to 57,856.37, 86,400.06 and 57,230.08

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Solution

The fourth proportional to 57,856.37, 86,400.06 and 57,230.08 is: 85,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,856.37 : 86,400.06 = 57,230.08 : x
  2. Step 2: Convert to fraction form
    57,856.37/86,400.06 = 57,230.08/x
  3. Step 3: Cross multiply
    57,856.37x = 86,400.06 × 57,230.08
  4. Step 4: Simplify right side
    57,856.37x = 4,944,682,440.65
  5. Step 5: Solve for x
    x = 4,944,682,440.65/57,856.37
  6. Step 6: Final answer
    x = 85,464.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.