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Finding the Fourth Proportional to 354,910.59, 489,784.04 and 193,772.43

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Solution

The fourth proportional to 354,910.59, 489,784.04 and 193,772.43 is: 267,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,910.59 : 489,784.04 = 193,772.43 : x
  2. Step 2: Convert to fraction form
    354,910.59/489,784.04 = 193,772.43/x
  3. Step 3: Cross multiply
    354,910.59x = 489,784.04 × 193,772.43
  4. Step 4: Simplify right side
    354,910.59x = 94,906,643,606.02
  5. Step 5: Solve for x
    x = 94,906,643,606.02/354,910.59
  6. Step 6: Final answer
    x = 267,410.01

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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.