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Finding the Fourth Proportional to 103,988.86, 155,996.25 and 33,849.34

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Solution

The fourth proportional to 103,988.86, 155,996.25 and 33,849.34 is: 50,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.86 : 155,996.25 = 33,849.34 : x
  2. Step 2: Convert to fraction form
    103,988.86/155,996.25 = 33,849.34/x
  3. Step 3: Cross multiply
    103,988.86x = 155,996.25 × 33,849.34
  4. Step 4: Simplify right side
    103,988.86x = 5,280,370,104.98
  5. Step 5: Solve for x
    x = 5,280,370,104.98/103,988.86
  6. Step 6: Final answer
    x = 50,778.23

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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.