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Finding the Fourth Proportional to 185,371.54, 278,099.93 and 67,042.89

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Solution

The fourth proportional to 185,371.54, 278,099.93 and 67,042.89 is: 100,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,371.54 : 278,099.93 = 67,042.89 : x
  2. Step 2: Convert to fraction form
    185,371.54/278,099.93 = 67,042.89/x
  3. Step 3: Cross multiply
    185,371.54x = 278,099.93 × 67,042.89
  4. Step 4: Simplify right side
    185,371.54x = 18,644,623,183.60
  5. Step 5: Solve for x
    x = 18,644,623,183.60/185,371.54
  6. Step 6: Final answer
    x = 100,579.75

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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.