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Finding the Fourth Proportional to 354,672.60, 489,455.22 and 193,532.04

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Solution

The fourth proportional to 354,672.60, 489,455.22 and 193,532.04 is: 267,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,672.60 : 489,455.22 = 193,532.04 : x
  2. Step 2: Convert to fraction form
    354,672.60/489,455.22 = 193,532.04/x
  3. Step 3: Cross multiply
    354,672.60x = 489,455.22 × 193,532.04
  4. Step 4: Simplify right side
    354,672.60x = 94,725,267,215.25
  5. Step 5: Solve for x
    x = 94,725,267,215.25/354,672.60
  6. Step 6: Final answer
    x = 267,078.05

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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.