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Finding the Fourth Proportional to 107,951.66, 161,767.57 and 43,831.83

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Solution

The fourth proportional to 107,951.66, 161,767.57 and 43,831.83 is: 65,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,951.66 : 161,767.57 = 43,831.83 : x
  2. Step 2: Convert to fraction form
    107,951.66/161,767.57 = 43,831.83/x
  3. Step 3: Cross multiply
    107,951.66x = 161,767.57 × 43,831.83
  4. Step 4: Simplify right side
    107,951.66x = 7,090,568,408.59
  5. Step 5: Solve for x
    x = 7,090,568,408.59/107,951.66
  6. Step 6: Final answer
    x = 65,682.81

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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.