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Finding the Fourth Proportional to 135,246.88, 202,880.87 and 45,289.92

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Solution

The fourth proportional to 135,246.88, 202,880.87 and 45,289.92 is: 67,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,246.88 : 202,880.87 = 45,289.92 : x
  2. Step 2: Convert to fraction form
    135,246.88/202,880.87 = 45,289.92/x
  3. Step 3: Cross multiply
    135,246.88x = 202,880.87 × 45,289.92
  4. Step 4: Simplify right side
    135,246.88x = 9,188,458,371.83
  5. Step 5: Solve for x
    x = 9,188,458,371.83/135,246.88
  6. Step 6: Final answer
    x = 67,938.41

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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.