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Finding the Fourth Proportional to 68,552.83, 102,831.09 and 33,008.64

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Solution

The fourth proportional to 68,552.83, 102,831.09 and 33,008.64 is: 49,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,552.83 : 102,831.09 = 33,008.64 : x
  2. Step 2: Convert to fraction form
    68,552.83/102,831.09 = 33,008.64/x
  3. Step 3: Cross multiply
    68,552.83x = 102,831.09 × 33,008.64
  4. Step 4: Simplify right side
    68,552.83x = 3,394,314,430.62
  5. Step 5: Solve for x
    x = 3,394,314,430.62/68,552.83
  6. Step 6: Final answer
    x = 49,513.85

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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.