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Finding the Fourth Proportional to 353,709.20, 488,109.48 and 192,567.44

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Solution

The fourth proportional to 353,709.20, 488,109.48 and 192,567.44 is: 265,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,709.20 : 488,109.48 = 192,567.44 : x
  2. Step 2: Convert to fraction form
    353,709.20/488,109.48 = 192,567.44/x
  3. Step 3: Cross multiply
    353,709.20x = 488,109.48 × 192,567.44
  4. Step 4: Simplify right side
    353,709.20x = 93,993,993,003.33
  5. Step 5: Solve for x
    x = 93,993,993,003.33/353,709.20
  6. Step 6: Final answer
    x = 265,738.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.