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Finding the Fourth Proportional to 159,588.27, 220,229.16 and 87,974.94

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Solution

The fourth proportional to 159,588.27, 220,229.16 and 87,974.94 is: 121,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,588.27 : 220,229.16 = 87,974.94 : x
  2. Step 2: Convert to fraction form
    159,588.27/220,229.16 = 87,974.94/x
  3. Step 3: Cross multiply
    159,588.27x = 220,229.16 × 87,974.94
  4. Step 4: Simplify right side
    159,588.27x = 19,374,647,137.25
  5. Step 5: Solve for x
    x = 19,374,647,137.25/159,588.27
  6. Step 6: Final answer
    x = 121,403.95

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1.5x scale

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.