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Finding the Fourth Proportional to 353,454.08, 487,768.74 and 192,310.34

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Solution

The fourth proportional to 353,454.08, 487,768.74 and 192,310.34 is: 265,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,454.08 : 487,768.74 = 192,310.34 : x
  2. Step 2: Convert to fraction form
    353,454.08/487,768.74 = 192,310.34/x
  3. Step 3: Cross multiply
    353,454.08x = 487,768.74 × 192,310.34
  4. Step 4: Simplify right side
    353,454.08x = 93,802,972,230.77
  5. Step 5: Solve for x
    x = 93,802,972,230.77/353,454.08
  6. Step 6: Final answer
    x = 265,389.42

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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.