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Finding the Fourth Proportional to 121,558.44, 167,759.10 and 67,853.94

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Solution

The fourth proportional to 121,558.44, 167,759.10 and 67,853.94 is: 93,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,558.44 : 167,759.10 = 67,853.94 : x
  2. Step 2: Convert to fraction form
    121,558.44/167,759.10 = 67,853.94/x
  3. Step 3: Cross multiply
    121,558.44x = 167,759.10 × 67,853.94
  4. Step 4: Simplify right side
    121,558.44x = 11,383,115,905.85
  5. Step 5: Solve for x
    x = 11,383,115,905.85/121,558.44
  6. Step 6: Final answer
    x = 93,643.16

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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.