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Finding the Fourth Proportional to 66,786.22, 100,169.52 and 25,223.50

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Solution

The fourth proportional to 66,786.22, 100,169.52 and 25,223.50 is: 37,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.22 : 100,169.52 = 25,223.50 : x
  2. Step 2: Convert to fraction form
    66,786.22/100,169.52 = 25,223.50/x
  3. Step 3: Cross multiply
    66,786.22x = 100,169.52 × 25,223.50
  4. Step 4: Simplify right side
    66,786.22x = 2,526,625,887.72
  5. Step 5: Solve for x
    x = 2,526,625,887.72/66,786.22
  6. Step 6: Final answer
    x = 37,831.55

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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.