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Finding the Fourth Proportional to 69,889.71, 104,850.96 and 23,142.60

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Solution

The fourth proportional to 69,889.71, 104,850.96 and 23,142.60 is: 34,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,889.71 : 104,850.96 = 23,142.60 : x
  2. Step 2: Convert to fraction form
    69,889.71/104,850.96 = 23,142.60/x
  3. Step 3: Cross multiply
    69,889.71x = 104,850.96 × 23,142.60
  4. Step 4: Simplify right side
    69,889.71x = 2,426,523,826.90
  5. Step 5: Solve for x
    x = 2,426,523,826.90/69,889.71
  6. Step 6: Final answer
    x = 34,719.33

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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.