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Finding the Fourth Proportional to 69,199.42, 103,831.89 and 41,174.86

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Solution

The fourth proportional to 69,199.42, 103,831.89 and 41,174.86 is: 61,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,199.42 : 103,831.89 = 41,174.86 : x
  2. Step 2: Convert to fraction form
    69,199.42/103,831.89 = 41,174.86/x
  3. Step 3: Cross multiply
    69,199.42x = 103,831.89 × 41,174.86
  4. Step 4: Simplify right side
    69,199.42x = 4,275,263,534.29
  5. Step 5: Solve for x
    x = 4,275,263,534.29/69,199.42
  6. Step 6: Final answer
    x = 61,781.78

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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.