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Finding the Fourth Proportional to 325,830.10, 488,745.15 and 201,241.30

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Solution

The fourth proportional to 325,830.10, 488,745.15 and 201,241.30 is: 301,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,830.10 : 488,745.15 = 201,241.30 : x
  2. Step 2: Convert to fraction form
    325,830.10/488,745.15 = 201,241.30/x
  3. Step 3: Cross multiply
    325,830.10x = 488,745.15 × 201,241.30
  4. Step 4: Simplify right side
    325,830.10x = 98,355,709,354.70
  5. Step 5: Solve for x
    x = 98,355,709,354.70/325,830.10
  6. Step 6: Final answer
    x = 301,861.95

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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.