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Finding the Fourth Proportional to 116,379.92, 160,609.56 and 68,635.28

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Solution

The fourth proportional to 116,379.92, 160,609.56 and 68,635.28 is: 94,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,379.92 : 160,609.56 = 68,635.28 : x
  2. Step 2: Convert to fraction form
    116,379.92/160,609.56 = 68,635.28/x
  3. Step 3: Cross multiply
    116,379.92x = 160,609.56 × 68,635.28
  4. Step 4: Simplify right side
    116,379.92x = 11,023,482,121.28
  5. Step 5: Solve for x
    x = 11,023,482,121.28/116,379.92
  6. Step 6: Final answer
    x = 94,719.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.