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Finding the Fourth Proportional to 354,790.56, 489,606.96 and 193,644.36

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Solution

The fourth proportional to 354,790.56, 489,606.96 and 193,644.36 is: 267,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,790.56 : 489,606.96 = 193,644.36 : x
  2. Step 2: Convert to fraction form
    354,790.56/489,606.96 = 193,644.36/x
  3. Step 3: Cross multiply
    354,790.56x = 489,606.96 × 193,644.36
  4. Step 4: Simplify right side
    354,790.56x = 94,809,626,420.75
  5. Step 5: Solve for x
    x = 94,809,626,420.75/354,790.56
  6. Step 6: Final answer
    x = 267,227.03

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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.