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Finding the Fourth Proportional to 116,179.34, 173,930.49 and 86,325.89

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Solution

The fourth proportional to 116,179.34, 173,930.49 and 86,325.89 is: 129,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,179.34 : 173,930.49 = 86,325.89 : x
  2. Step 2: Convert to fraction form
    116,179.34/173,930.49 = 86,325.89/x
  3. Step 3: Cross multiply
    116,179.34x = 173,930.49 × 86,325.89
  4. Step 4: Simplify right side
    116,179.34x = 15,014,703,477.73
  5. Step 5: Solve for x
    x = 15,014,703,477.73/116,179.34
  6. Step 6: Final answer
    x = 129,237.30

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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.