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Finding the Fourth Proportional to 73,102.93, 109,658.27 and 20,516.52

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Solution

The fourth proportional to 73,102.93, 109,658.27 and 20,516.52 is: 30,775.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,102.93 : 109,658.27 = 20,516.52 : x
  2. Step 2: Convert to fraction form
    73,102.93/109,658.27 = 20,516.52/x
  3. Step 3: Cross multiply
    73,102.93x = 109,658.27 × 20,516.52
  4. Step 4: Simplify right side
    73,102.93x = 2,249,805,540.33
  5. Step 5: Solve for x
    x = 2,249,805,540.33/73,102.93
  6. Step 6: Final answer
    x = 30,775.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.