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Finding the Fourth Proportional to 116,495.91, 174,481.33 and 81,591.39

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Solution

The fourth proportional to 116,495.91, 174,481.33 and 81,591.39 is: 122,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,495.91 : 174,481.33 = 81,591.39 : x
  2. Step 2: Convert to fraction form
    116,495.91/174,481.33 = 81,591.39/x
  3. Step 3: Cross multiply
    116,495.91x = 174,481.33 × 81,591.39
  4. Step 4: Simplify right side
    116,495.91x = 14,236,173,167.36
  5. Step 5: Solve for x
    x = 14,236,173,167.36/116,495.91
  6. Step 6: Final answer
    x = 122,203.21

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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.