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Finding the Fourth Proportional to 103,953.50, 155,939.97 and 33,813.98

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Solution

The fourth proportional to 103,953.50, 155,939.97 and 33,813.98 is: 50,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.50 : 155,939.97 = 33,813.98 : x
  2. Step 2: Convert to fraction form
    103,953.50/155,939.97 = 33,813.98/x
  3. Step 3: Cross multiply
    103,953.50x = 155,939.97 × 33,813.98
  4. Step 4: Simplify right side
    103,953.50x = 5,272,951,026.78
  5. Step 5: Solve for x
    x = 5,272,951,026.78/103,953.50
  6. Step 6: Final answer
    x = 50,724.13

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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.