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Finding the Fourth Proportional to 353,199.70, 487,408.69 and 192,053.34

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Solution

The fourth proportional to 353,199.70, 487,408.69 and 192,053.34 is: 265,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,199.70 : 487,408.69 = 192,053.34 : x
  2. Step 2: Convert to fraction form
    353,199.70/487,408.69 = 192,053.34/x
  3. Step 3: Cross multiply
    353,199.70x = 487,408.69 × 192,053.34
  4. Step 4: Simplify right side
    353,199.70x = 93,608,466,859.52
  5. Step 5: Solve for x
    x = 93,608,466,859.52/353,199.70
  6. Step 6: Final answer
    x = 265,029.86

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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.