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Finding the Fourth Proportional to 103,692.62, 155,506.05 and 33,555.50

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Solution

The fourth proportional to 103,692.62, 155,506.05 and 33,555.50 is: 50,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,692.62 : 155,506.05 = 33,555.50 : x
  2. Step 2: Convert to fraction form
    103,692.62/155,506.05 = 33,555.50/x
  3. Step 3: Cross multiply
    103,692.62x = 155,506.05 × 33,555.50
  4. Step 4: Simplify right side
    103,692.62x = 5,218,083,260.78
  5. Step 5: Solve for x
    x = 5,218,083,260.78/103,692.62
  6. Step 6: Final answer
    x = 50,322.61

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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.