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Finding the Fourth Proportional to 159,888.08, 220,644.60 and 88,272.56

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Solution

The fourth proportional to 159,888.08, 220,644.60 and 88,272.56 is: 121,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,888.08 : 220,644.60 = 88,272.56 : x
  2. Step 2: Convert to fraction form
    159,888.08/220,644.60 = 88,272.56/x
  3. Step 3: Cross multiply
    159,888.08x = 220,644.60 × 88,272.56
  4. Step 4: Simplify right side
    159,888.08x = 19,476,863,692.18
  5. Step 5: Solve for x
    x = 19,476,863,692.18/159,888.08
  6. Step 6: Final answer
    x = 121,815.61

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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.