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Finding the Fourth Proportional to 104,991.63, 157,503.30 and 33,890.50

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Solution

The fourth proportional to 104,991.63, 157,503.30 and 33,890.50 is: 50,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.63 : 157,503.30 = 33,890.50 : x
  2. Step 2: Convert to fraction form
    104,991.63/157,503.30 = 33,890.50/x
  3. Step 3: Cross multiply
    104,991.63x = 157,503.30 × 33,890.50
  4. Step 4: Simplify right side
    104,991.63x = 5,337,865,588.65
  5. Step 5: Solve for x
    x = 5,337,865,588.65/104,991.63
  6. Step 6: Final answer
    x = 50,840.87

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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.