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Finding the Fourth Proportional to 140,331.70, 196,879.10 and 140,331.70

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Solution

The fourth proportional to 140,331.70, 196,879.10 and 140,331.70 is: 196,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,331.70 : 196,879.10 = 140,331.70 : x
  2. Step 2: Convert to fraction form
    140,331.70/196,879.10 = 140,331.70/x
  3. Step 3: Cross multiply
    140,331.70x = 196,879.10 × 140,331.70
  4. Step 4: Simplify right side
    140,331.70x = 27,628,378,797.47
  5. Step 5: Solve for x
    x = 27,628,378,797.47/140,331.70
  6. Step 6: Final answer
    x = 196,879.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.