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Finding the Fourth Proportional to 353,601.78, 487,980.72 and 192,467.25

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Solution

The fourth proportional to 353,601.78, 487,980.72 and 192,467.25 is: 265,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,601.78 : 487,980.72 = 192,467.25 : x
  2. Step 2: Convert to fraction form
    353,601.78/487,980.72 = 192,467.25/x
  3. Step 3: Cross multiply
    353,601.78x = 487,980.72 × 192,467.25
  4. Step 4: Simplify right side
    353,601.78x = 93,920,307,231.42
  5. Step 5: Solve for x
    x = 93,920,307,231.42/353,601.78
  6. Step 6: Final answer
    x = 265,610.39

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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.