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Finding the Fourth Proportional to 192,043.78, 287,679.84 and 95,690.37

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Solution

The fourth proportional to 192,043.78, 287,679.84 and 95,690.37 is: 143,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,043.78 : 287,679.84 = 95,690.37 : x
  2. Step 2: Convert to fraction form
    192,043.78/287,679.84 = 95,690.37/x
  3. Step 3: Cross multiply
    192,043.78x = 287,679.84 × 95,690.37
  4. Step 4: Simplify right side
    192,043.78x = 27,528,190,331.14
  5. Step 5: Solve for x
    x = 27,528,190,331.14/192,043.78
  6. Step 6: Final answer
    x = 143,343.31

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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.