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Finding the Fourth Proportional to 192,889.82, 289,348.62 and 66,528.29

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Solution

The fourth proportional to 192,889.82, 289,348.62 and 66,528.29 is: 99,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,889.82 : 289,348.62 = 66,528.29 : x
  2. Step 2: Convert to fraction form
    192,889.82/289,348.62 = 66,528.29/x
  3. Step 3: Cross multiply
    192,889.82x = 289,348.62 × 66,528.29
  4. Step 4: Simplify right side
    192,889.82x = 19,249,867,455.72
  5. Step 5: Solve for x
    x = 19,249,867,455.72/192,889.82
  6. Step 6: Final answer
    x = 99,797.22

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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.