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Finding the Fourth Proportional to 124,551.56, 171,879.54 and 67,961.96

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Solution

The fourth proportional to 124,551.56, 171,879.54 and 67,961.96 is: 93,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551.56 : 171,879.54 = 67,961.96 : x
  2. Step 2: Convert to fraction form
    124,551.56/171,879.54 = 67,961.96/x
  3. Step 3: Cross multiply
    124,551.56x = 171,879.54 × 67,961.96
  4. Step 4: Simplify right side
    124,551.56x = 11,681,270,422.30
  5. Step 5: Solve for x
    x = 11,681,270,422.30/124,551.56
  6. Step 6: Final answer
    x = 93,786.62

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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.