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Finding the Fourth Proportional to 223,443.86, 335,060.22 and 81,189.98

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Solution

The fourth proportional to 223,443.86, 335,060.22 and 81,189.98 is: 121,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,443.86 : 335,060.22 = 81,189.98 : x
  2. Step 2: Convert to fraction form
    223,443.86/335,060.22 = 81,189.98/x
  3. Step 3: Cross multiply
    223,443.86x = 335,060.22 × 81,189.98
  4. Step 4: Simplify right side
    223,443.86x = 27,203,532,560.60
  5. Step 5: Solve for x
    x = 27,203,532,560.60/223,443.86
  6. Step 6: Final answer
    x = 121,746.61

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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.