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Finding the Fourth Proportional to 66,923.40, 100,406.70 and 44,761.80

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Solution

The fourth proportional to 66,923.40, 100,406.70 and 44,761.80 is: 67,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,923.40 : 100,406.70 = 44,761.80 : x
  2. Step 2: Convert to fraction form
    66,923.40/100,406.70 = 44,761.80/x
  3. Step 3: Cross multiply
    66,923.40x = 100,406.70 × 44,761.80
  4. Step 4: Simplify right side
    66,923.40x = 4,494,384,624.06
  5. Step 5: Solve for x
    x = 4,494,384,624.06/66,923.40
  6. Step 6: Final answer
    x = 67,157.15

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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.