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Finding the Fourth Proportional to 354,848.65, 489,672.44 and 193,672.42

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Solution

The fourth proportional to 354,848.65, 489,672.44 and 193,672.42 is: 267,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,848.65 : 489,672.44 = 193,672.42 : x
  2. Step 2: Convert to fraction form
    354,848.65/489,672.44 = 193,672.42/x
  3. Step 3: Cross multiply
    354,848.65x = 489,672.44 × 193,672.42
  4. Step 4: Simplify right side
    354,848.65x = 94,836,044,995.83
  5. Step 5: Solve for x
    x = 94,836,044,995.83/354,848.65
  6. Step 6: Final answer
    x = 267,257.73

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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.