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Finding the Fourth Proportional to 159,654.64, 220,323.86 and 88,033.09

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Solution

The fourth proportional to 159,654.64, 220,323.86 and 88,033.09 is: 121,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,654.64 : 220,323.86 = 88,033.09 : x
  2. Step 2: Convert to fraction form
    159,654.64/220,323.86 = 88,033.09/x
  3. Step 3: Cross multiply
    159,654.64x = 220,323.86 × 88,033.09
  4. Step 4: Simplify right side
    159,654.64x = 19,395,789,535.68
  5. Step 5: Solve for x
    x = 19,395,789,535.68/159,654.64
  6. Step 6: Final answer
    x = 121,485.91

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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.