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Finding the Fourth Proportional to 223,605.70, 335,408.55 and 201,487.30

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Solution

The fourth proportional to 223,605.70, 335,408.55 and 201,487.30 is: 302,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,605.70 : 335,408.55 = 201,487.30 : x
  2. Step 2: Convert to fraction form
    223,605.70/335,408.55 = 201,487.30/x
  3. Step 3: Cross multiply
    223,605.70x = 335,408.55 × 201,487.30
  4. Step 4: Simplify right side
    223,605.70x = 67,580,563,136.42
  5. Step 5: Solve for x
    x = 67,580,563,136.42/223,605.70
  6. Step 6: Final answer
    x = 302,230.95

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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.