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Finding the Fourth Proportional to 137,552.99, 206,311.91 and 53,255.48

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Solution

The fourth proportional to 137,552.99, 206,311.91 and 53,255.48 is: 79,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,552.99 : 206,311.91 = 53,255.48 : x
  2. Step 2: Convert to fraction form
    137,552.99/206,311.91 = 53,255.48/x
  3. Step 3: Cross multiply
    137,552.99x = 206,311.91 × 53,255.48
  4. Step 4: Simplify right side
    137,552.99x = 10,987,238,498.93
  5. Step 5: Solve for x
    x = 10,987,238,498.93/137,552.99
  6. Step 6: Final answer
    x = 79,876.41

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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.