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Finding the Fourth Proportional to 351,992.23, 485,746.95 and 190,846.78

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Solution

The fourth proportional to 351,992.23, 485,746.95 and 190,846.78 is: 263,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,992.23 : 485,746.95 = 190,846.78 : x
  2. Step 2: Convert to fraction form
    351,992.23/485,746.95 = 190,846.78/x
  3. Step 3: Cross multiply
    351,992.23x = 485,746.95 × 190,846.78
  4. Step 4: Simplify right side
    351,992.23x = 92,703,241,302.32
  5. Step 5: Solve for x
    x = 92,703,241,302.32/351,992.23
  6. Step 6: Final answer
    x = 263,367.29

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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.