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Finding the Fourth Proportional to 119,392.98, 164,766.33 and 65,680.26

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Solution

The fourth proportional to 119,392.98, 164,766.33 and 65,680.26 is: 90,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,392.98 : 164,766.33 = 65,680.26 : x
  2. Step 2: Convert to fraction form
    119,392.98/164,766.33 = 65,680.26/x
  3. Step 3: Cross multiply
    119,392.98x = 164,766.33 × 65,680.26
  4. Step 4: Simplify right side
    119,392.98x = 10,821,895,393.65
  5. Step 5: Solve for x
    x = 10,821,895,393.65/119,392.98
  6. Step 6: Final answer
    x = 90,640.97

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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.