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Finding the Fourth Proportional to 68,289.92, 102,406.08 and 26,706.56

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Solution

The fourth proportional to 68,289.92, 102,406.08 and 26,706.56 is: 40,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,289.92 : 102,406.08 = 26,706.56 : x
  2. Step 2: Convert to fraction form
    68,289.92/102,406.08 = 26,706.56/x
  3. Step 3: Cross multiply
    68,289.92x = 102,406.08 × 26,706.56
  4. Step 4: Simplify right side
    68,289.92x = 2,734,914,119.88
  5. Step 5: Solve for x
    x = 2,734,914,119.88/68,289.92
  6. Step 6: Final answer
    x = 40,048.58

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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.