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Finding the Fourth Proportional to 66,923.40, 100,269.90 and 35,286.60

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Solution

The fourth proportional to 66,923.40, 100,269.90 and 35,286.60 is: 52,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,923.40 : 100,269.90 = 35,286.60 : x
  2. Step 2: Convert to fraction form
    66,923.40/100,269.90 = 35,286.60/x
  3. Step 3: Cross multiply
    66,923.40x = 100,269.90 × 35,286.60
  4. Step 4: Simplify right side
    66,923.40x = 3,538,183,853.34
  5. Step 5: Solve for x
    x = 3,538,183,853.34/66,923.40
  6. Step 6: Final answer
    x = 52,869.16

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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.