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Finding the Fourth Proportional to 69,576.40, 104,364.60 and 41,928.40

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Solution

The fourth proportional to 69,576.40, 104,364.60 and 41,928.40 is: 62,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,576.40 : 104,364.60 = 41,928.40 : x
  2. Step 2: Convert to fraction form
    69,576.40/104,364.60 = 41,928.40/x
  3. Step 3: Cross multiply
    69,576.40x = 104,364.60 × 41,928.40
  4. Step 4: Simplify right side
    69,576.40x = 4,375,840,694.64
  5. Step 5: Solve for x
    x = 4,375,840,694.64/69,576.40
  6. Step 6: Final answer
    x = 62,892.60

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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.