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Finding the Fourth Proportional to 103,953, 155,939.22 and 33,813.48

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Solution

The fourth proportional to 103,953, 155,939.22 and 33,813.48 is: 50,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953 : 155,939.22 = 33,813.48 : x
  2. Step 2: Convert to fraction form
    103,953/155,939.22 = 33,813.48/x
  3. Step 3: Cross multiply
    103,953x = 155,939.22 × 33,813.48
  4. Step 4: Simplify right side
    103,953x = 5,272,847,696.69
  5. Step 5: Solve for x
    x = 5,272,847,696.69/103,953
  6. Step 6: Final answer
    x = 50,723.38

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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.