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Finding the Fourth Proportional to 319,961.62, 480,046.19 and 95,323.98

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Solution

The fourth proportional to 319,961.62, 480,046.19 and 95,323.98 is: 143,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,961.62 : 480,046.19 = 95,323.98 : x
  2. Step 2: Convert to fraction form
    319,961.62/480,046.19 = 95,323.98/x
  3. Step 3: Cross multiply
    319,961.62x = 480,046.19 × 95,323.98
  4. Step 4: Simplify right side
    319,961.62x = 45,759,912,938.02
  5. Step 5: Solve for x
    x = 45,759,912,938.02/319,961.62
  6. Step 6: Final answer
    x = 143,016.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.