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Finding the Fourth Proportional to 354,883.95, 489,747.26 and 193,745.79

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Solution

The fourth proportional to 354,883.95, 489,747.26 and 193,745.79 is: 267,373.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,883.95 : 489,747.26 = 193,745.79 : x
  2. Step 2: Convert to fraction form
    354,883.95/489,747.26 = 193,745.79/x
  3. Step 3: Cross multiply
    354,883.95x = 489,747.26 × 193,745.79
  4. Step 4: Simplify right side
    354,883.95x = 94,886,470,273.40
  5. Step 5: Solve for x
    x = 94,886,470,273.40/354,883.95
  6. Step 6: Final answer
    x = 267,373.24

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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.