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Finding the Fourth Proportional to 159,969.52, 220,759.60 and 88,351.36

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Solution

The fourth proportional to 159,969.52, 220,759.60 and 88,351.36 is: 121,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,969.52 : 220,759.60 = 88,351.36 : x
  2. Step 2: Convert to fraction form
    159,969.52/220,759.60 = 88,351.36/x
  3. Step 3: Cross multiply
    159,969.52x = 220,759.60 × 88,351.36
  4. Step 4: Simplify right side
    159,969.52x = 19,504,410,893.06
  5. Step 5: Solve for x
    x = 19,504,410,893.06/159,969.52
  6. Step 6: Final answer
    x = 121,925.79

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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.