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Finding the Fourth Proportional to 103,692.72, 155,563.72 and 33,572

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Solution

The fourth proportional to 103,692.72, 155,563.72 and 33,572 is: 50,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,692.72 : 155,563.72 = 33,572 : x
  2. Step 2: Convert to fraction form
    103,692.72/155,563.72 = 33,572/x
  3. Step 3: Cross multiply
    103,692.72x = 155,563.72 × 33,572
  4. Step 4: Simplify right side
    103,692.72x = 5,222,585,207.84
  5. Step 5: Solve for x
    x = 5,222,585,207.84/103,692.72
  6. Step 6: Final answer
    x = 50,365.98

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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.