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Finding the Fourth Proportional to 375,866.60, 518,694.26 and 206,100.72

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Solution

The fourth proportional to 375,866.60, 518,694.26 and 206,100.72 is: 284,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,866.60 : 518,694.26 = 206,100.72 : x
  2. Step 2: Convert to fraction form
    375,866.60/518,694.26 = 206,100.72/x
  3. Step 3: Cross multiply
    375,866.60x = 518,694.26 × 206,100.72
  4. Step 4: Simplify right side
    375,866.60x = 106,903,259,415.36
  5. Step 5: Solve for x
    x = 106,903,259,415.36/375,866.60
  6. Step 6: Final answer
    x = 284,418.09

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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.