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Finding the Fourth Proportional to 353,859.75, 488,326.46 and 194,883.75

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Solution

The fourth proportional to 353,859.75, 488,326.46 and 194,883.75 is: 268,939.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,859.75 : 488,326.46 = 194,883.75 : x
  2. Step 2: Convert to fraction form
    353,859.75/488,326.46 = 194,883.75/x
  3. Step 3: Cross multiply
    353,859.75x = 488,326.46 × 194,883.75
  4. Step 4: Simplify right side
    353,859.75x = 95,166,890,774.61
  5. Step 5: Solve for x
    x = 95,166,890,774.61/353,859.75
  6. Step 6: Final answer
    x = 268,939.58

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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.