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Finding the Fourth Proportional to 195,558.86, 269,848.91 and 109,505.88

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Solution

The fourth proportional to 195,558.86, 269,848.91 and 109,505.88 is: 151,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,558.86 : 269,848.91 = 109,505.88 : x
  2. Step 2: Convert to fraction form
    195,558.86/269,848.91 = 109,505.88/x
  3. Step 3: Cross multiply
    195,558.86x = 269,848.91 × 109,505.88
  4. Step 4: Simplify right side
    195,558.86x = 29,550,041,007.35
  5. Step 5: Solve for x
    x = 29,550,041,007.35/195,558.86
  6. Step 6: Final answer
    x = 151,105.61

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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.