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Finding the Fourth Proportional to 70,190.62, 96,831.96 and 41,879.86

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Solution

The fourth proportional to 70,190.62, 96,831.96 and 41,879.86 is: 57,775.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.62 : 96,831.96 = 41,879.86 : x
  2. Step 2: Convert to fraction form
    70,190.62/96,831.96 = 41,879.86/x
  3. Step 3: Cross multiply
    70,190.62x = 96,831.96 × 41,879.86
  4. Step 4: Simplify right side
    70,190.62x = 4,055,308,928.33
  5. Step 5: Solve for x
    x = 4,055,308,928.33/70,190.62
  6. Step 6: Final answer
    x = 57,775.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.