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Finding the Fourth Proportional to 223,879.20, 335,729.70 and 74,077.80

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Solution

The fourth proportional to 223,879.20, 335,729.70 and 74,077.80 is: 111,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,879.20 : 335,729.70 = 74,077.80 : x
  2. Step 2: Convert to fraction form
    223,879.20/335,729.70 = 74,077.80/x
  3. Step 3: Cross multiply
    223,879.20x = 335,729.70 × 74,077.80
  4. Step 4: Simplify right side
    223,879.20x = 24,870,117,570.66
  5. Step 5: Solve for x
    x = 24,870,117,570.66/223,879.20
  6. Step 6: Final answer
    x = 111,087.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.