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Finding the Fourth Proportional to 126,937.96, 190,494.42 and 43,831.96

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Solution

The fourth proportional to 126,937.96, 190,494.42 and 43,831.96 is: 65,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,937.96 : 190,494.42 = 43,831.96 : x
  2. Step 2: Convert to fraction form
    126,937.96/190,494.42 = 43,831.96/x
  3. Step 3: Cross multiply
    126,937.96x = 190,494.42 × 43,831.96
  4. Step 4: Simplify right side
    126,937.96x = 8,349,743,797.66
  5. Step 5: Solve for x
    x = 8,349,743,797.66/126,937.96
  6. Step 6: Final answer
    x = 65,778.15

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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.