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Finding the Fourth Proportional to 116,370.62, 160,581.60 and 65,379.36

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Solution

The fourth proportional to 116,370.62, 160,581.60 and 65,379.36 is: 90,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,370.62 : 160,581.60 = 65,379.36 : x
  2. Step 2: Convert to fraction form
    116,370.62/160,581.60 = 65,379.36/x
  3. Step 3: Cross multiply
    116,370.62x = 160,581.60 × 65,379.36
  4. Step 4: Simplify right side
    116,370.62x = 10,498,722,235.78
  5. Step 5: Solve for x
    x = 10,498,722,235.78/116,370.62
  6. Step 6: Final answer
    x = 90,217.98

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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.