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Finding the Fourth Proportional to 159,757.60, 220,466.22 and 88,137.60

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Solution

The fourth proportional to 159,757.60, 220,466.22 and 88,137.60 is: 121,630.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,757.60 : 220,466.22 = 88,137.60 : x
  2. Step 2: Convert to fraction form
    159,757.60/220,466.22 = 88,137.60/x
  3. Step 3: Cross multiply
    159,757.60x = 220,466.22 × 88,137.60
  4. Step 4: Simplify right side
    159,757.60x = 19,431,363,511.87
  5. Step 5: Solve for x
    x = 19,431,363,511.87/159,757.60
  6. Step 6: Final answer
    x = 121,630.29

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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.