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Finding the Fourth Proportional to 140,791.63, 194,292.44 and 84,203

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Solution

The fourth proportional to 140,791.63, 194,292.44 and 84,203 is: 116,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,791.63 : 194,292.44 = 84,203 : x
  2. Step 2: Convert to fraction form
    140,791.63/194,292.44 = 84,203/x
  3. Step 3: Cross multiply
    140,791.63x = 194,292.44 × 84,203
  4. Step 4: Simplify right side
    140,791.63x = 16,360,006,325.32
  5. Step 5: Solve for x
    x = 16,360,006,325.32/140,791.63
  6. Step 6: Final answer
    x = 116,200.13

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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.