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Finding the Fourth Proportional to 353,129.75, 487,324.37 and 191,984.44

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Solution

The fourth proportional to 353,129.75, 487,324.37 and 191,984.44 is: 264,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,129.75 : 487,324.37 = 191,984.44 : x
  2. Step 2: Convert to fraction form
    353,129.75/487,324.37 = 191,984.44/x
  3. Step 3: Cross multiply
    353,129.75x = 487,324.37 × 191,984.44
  4. Step 4: Simplify right side
    353,129.75x = 93,558,694,094.57
  5. Step 5: Solve for x
    x = 93,558,694,094.57/353,129.75
  6. Step 6: Final answer
    x = 264,941.41

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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.