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Finding the Fourth Proportional to 203,570.36, 305,044.15 and 108,814.04

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Solution

The fourth proportional to 203,570.36, 305,044.15 and 108,814.04 is: 163,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,570.36 : 305,044.15 = 108,814.04 : x
  2. Step 2: Convert to fraction form
    203,570.36/305,044.15 = 108,814.04/x
  3. Step 3: Cross multiply
    203,570.36x = 305,044.15 × 108,814.04
  4. Step 4: Simplify right side
    203,570.36x = 33,193,086,339.87
  5. Step 5: Solve for x
    x = 33,193,086,339.87/203,570.36
  6. Step 6: Final answer
    x = 163,054.61

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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.