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Finding the Fourth Proportional to 159,951.24, 220,736.16 and 88,335.84

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Solution

The fourth proportional to 159,951.24, 220,736.16 and 88,335.84 is: 121,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,951.24 : 220,736.16 = 88,335.84 : x
  2. Step 2: Convert to fraction form
    159,951.24/220,736.16 = 88,335.84/x
  3. Step 3: Cross multiply
    159,951.24x = 220,736.16 × 88,335.84
  4. Step 4: Simplify right side
    159,951.24x = 19,498,914,111.97
  5. Step 5: Solve for x
    x = 19,498,914,111.97/159,951.24
  6. Step 6: Final answer
    x = 121,905.36

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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.