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Finding the Fourth Proportional to 117,550.21, 162,229.34 and 66,571.95

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Solution

The fourth proportional to 117,550.21, 162,229.34 and 66,571.95 is: 91,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,550.21 : 162,229.34 = 66,571.95 : x
  2. Step 2: Convert to fraction form
    117,550.21/162,229.34 = 66,571.95/x
  3. Step 3: Cross multiply
    117,550.21x = 162,229.34 × 66,571.95
  4. Step 4: Simplify right side
    117,550.21x = 10,799,923,511.01
  5. Step 5: Solve for x
    x = 10,799,923,511.01/117,550.21
  6. Step 6: Final answer
    x = 91,874.98

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1.5x scale

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.