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Finding the Fourth Proportional to 369,539.78, 553,745.75 and 192,104.42

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Solution

The fourth proportional to 369,539.78, 553,745.75 and 192,104.42 is: 287,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,539.78 : 553,745.75 = 192,104.42 : x
  2. Step 2: Convert to fraction form
    369,539.78/553,745.75 = 192,104.42/x
  3. Step 3: Cross multiply
    369,539.78x = 553,745.75 × 192,104.42
  4. Step 4: Simplify right side
    369,539.78x = 106,377,006,131.22
  5. Step 5: Solve for x
    x = 106,377,006,131.22/369,539.78
  6. Step 6: Final answer
    x = 287,863.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.