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Finding the Fourth Proportional to 92,792.25, 138,880.26 and 84,491.37

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Solution

The fourth proportional to 92,792.25, 138,880.26 and 84,491.37 is: 126,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,792.25 : 138,880.26 = 84,491.37 : x
  2. Step 2: Convert to fraction form
    92,792.25/138,880.26 = 84,491.37/x
  3. Step 3: Cross multiply
    92,792.25x = 138,880.26 × 84,491.37
  4. Step 4: Simplify right side
    92,792.25x = 11,734,183,433.36
  5. Step 5: Solve for x
    x = 11,734,183,433.36/92,792.25
  6. Step 6: Final answer
    x = 126,456.50

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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.