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Finding the Fourth Proportional to 83,187, 124,704.36 and 30,556.44

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Solution

The fourth proportional to 83,187, 124,704.36 and 30,556.44 is: 45,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,187 : 124,704.36 = 30,556.44 : x
  2. Step 2: Convert to fraction form
    83,187/124,704.36 = 30,556.44/x
  3. Step 3: Cross multiply
    83,187x = 124,704.36 × 30,556.44
  4. Step 4: Simplify right side
    83,187x = 3,810,521,294.08
  5. Step 5: Solve for x
    x = 3,810,521,294.08/83,187
  6. Step 6: Final answer
    x = 45,806.69

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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.