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Finding the Fourth Proportional to 159,546.44, 220,163.66 and 87,926.48

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Solution

The fourth proportional to 159,546.44, 220,163.66 and 87,926.48 is: 121,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,546.44 : 220,163.66 = 87,926.48 : x
  2. Step 2: Convert to fraction form
    159,546.44/220,163.66 = 87,926.48/x
  3. Step 3: Cross multiply
    159,546.44x = 220,163.66 × 87,926.48
  4. Step 4: Simplify right side
    159,546.44x = 19,358,215,647.72
  5. Step 5: Solve for x
    x = 19,358,215,647.72/159,546.44
  6. Step 6: Final answer
    x = 121,332.80

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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.