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Finding the Fourth Proportional to 104,991.88, 157,503.68 and 33,890.76

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Solution

The fourth proportional to 104,991.88, 157,503.68 and 33,890.76 is: 50,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.88 : 157,503.68 = 33,890.76 : x
  2. Step 2: Convert to fraction form
    104,991.88/157,503.68 = 33,890.76/x
  3. Step 3: Cross multiply
    104,991.88x = 157,503.68 × 33,890.76
  4. Step 4: Simplify right side
    104,991.88x = 5,337,919,418.00
  5. Step 5: Solve for x
    x = 5,337,919,418.00/104,991.88
  6. Step 6: Final answer
    x = 50,841.26

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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.