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Finding the Fourth Proportional to 170,279.97, 234,958.23 and 103,211.97

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Solution

The fourth proportional to 170,279.97, 234,958.23 and 103,211.97 is: 142,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,279.97 : 234,958.23 = 103,211.97 : x
  2. Step 2: Convert to fraction form
    170,279.97/234,958.23 = 103,211.97/x
  3. Step 3: Cross multiply
    170,279.97x = 234,958.23 × 103,211.97
  4. Step 4: Simplify right side
    170,279.97x = 24,250,501,786.01
  5. Step 5: Solve for x
    x = 24,250,501,786.01/170,279.97
  6. Step 6: Final answer
    x = 142,415.47

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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.