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Finding the Fourth Proportional to 119,708.57, 165,198.94 and 65,995.49

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Solution

The fourth proportional to 119,708.57, 165,198.94 and 65,995.49 is: 91,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,708.57 : 165,198.94 = 65,995.49 : x
  2. Step 2: Convert to fraction form
    119,708.57/165,198.94 = 65,995.49/x
  3. Step 3: Cross multiply
    119,708.57x = 165,198.94 × 65,995.49
  4. Step 4: Simplify right side
    119,708.57x = 10,902,384,001.80
  5. Step 5: Solve for x
    x = 10,902,384,001.80/119,708.57
  6. Step 6: Final answer
    x = 91,074.39

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1.5x scale

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.