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Finding the Fourth Proportional to 67,258.26, 100,776.42 and 39,099.30

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Solution

The fourth proportional to 67,258.26, 100,776.42 and 39,099.30 is: 58,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,258.26 : 100,776.42 = 39,099.30 : x
  2. Step 2: Convert to fraction form
    67,258.26/100,776.42 = 39,099.30/x
  3. Step 3: Cross multiply
    67,258.26x = 100,776.42 × 39,099.30
  4. Step 4: Simplify right side
    67,258.26x = 3,940,287,478.51
  5. Step 5: Solve for x
    x = 3,940,287,478.51/67,258.26
  6. Step 6: Final answer
    x = 58,584.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.