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Finding the Fourth Proportional to 354,517.52, 489,235.68 and 193,376.03

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Solution

The fourth proportional to 354,517.52, 489,235.68 and 193,376.03 is: 266,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,517.52 : 489,235.68 = 193,376.03 : x
  2. Step 2: Convert to fraction form
    354,517.52/489,235.68 = 193,376.03/x
  3. Step 3: Cross multiply
    354,517.52x = 489,235.68 × 193,376.03
  4. Step 4: Simplify right side
    354,517.52x = 94,606,451,086.57
  5. Step 5: Solve for x
    x = 94,606,451,086.57/354,517.52
  6. Step 6: Final answer
    x = 266,859.74

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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.