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Finding the Fourth Proportional to 203,887.94, 305,831.92 and 63,658.58

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Solution

The fourth proportional to 203,887.94, 305,831.92 and 63,658.58 is: 95,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,887.94 : 305,831.92 = 63,658.58 : x
  2. Step 2: Convert to fraction form
    203,887.94/305,831.92 = 63,658.58/x
  3. Step 3: Cross multiply
    203,887.94x = 305,831.92 × 63,658.58
  4. Step 4: Simplify right side
    203,887.94x = 19,468,825,745.87
  5. Step 5: Solve for x
    x = 19,468,825,745.87/203,887.94
  6. Step 6: Final answer
    x = 95,487.87

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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.