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Finding the Fourth Proportional to 116,694.35, 174,982.81 and 68,023.31

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Solution

The fourth proportional to 116,694.35, 174,982.81 and 68,023.31 is: 102,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,694.35 : 174,982.81 = 68,023.31 : x
  2. Step 2: Convert to fraction form
    116,694.35/174,982.81 = 68,023.31/x
  3. Step 3: Cross multiply
    116,694.35x = 174,982.81 × 68,023.31
  4. Step 4: Simplify right side
    116,694.35x = 11,902,909,929.30
  5. Step 5: Solve for x
    x = 11,902,909,929.30/116,694.35
  6. Step 6: Final answer
    x = 102,000.74

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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.