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Finding the Fourth Proportional to 69,084.40, 103,626.60 and 60,919.60

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Solution

The fourth proportional to 69,084.40, 103,626.60 and 60,919.60 is: 91,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,084.40 : 103,626.60 = 60,919.60 : x
  2. Step 2: Convert to fraction form
    69,084.40/103,626.60 = 60,919.60/x
  3. Step 3: Cross multiply
    69,084.40x = 103,626.60 × 60,919.60
  4. Step 4: Simplify right side
    69,084.40x = 6,312,891,021.36
  5. Step 5: Solve for x
    x = 6,312,891,021.36/69,084.40
  6. Step 6: Final answer
    x = 91,379.40

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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.