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Finding the Fourth Proportional to 183,408.70, 275,113.05 and 103,692.55

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Solution

The fourth proportional to 183,408.70, 275,113.05 and 103,692.55 is: 155,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,408.70 : 275,113.05 = 103,692.55 : x
  2. Step 2: Convert to fraction form
    183,408.70/275,113.05 = 103,692.55/x
  3. Step 3: Cross multiply
    183,408.70x = 275,113.05 × 103,692.55
  4. Step 4: Simplify right side
    183,408.70x = 28,527,173,692.78
  5. Step 5: Solve for x
    x = 28,527,173,692.78/183,408.70
  6. Step 6: Final answer
    x = 155,538.83

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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.