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Finding the Fourth Proportional to 204,789.88, 307,323.15 and 71,671.29

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Solution

The fourth proportional to 204,789.88, 307,323.15 and 71,671.29 is: 107,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,789.88 : 307,323.15 = 71,671.29 : x
  2. Step 2: Convert to fraction form
    204,789.88/307,323.15 = 71,671.29/x
  3. Step 3: Cross multiply
    204,789.88x = 307,323.15 × 71,671.29
  4. Step 4: Simplify right side
    204,789.88x = 22,026,246,607.36
  5. Step 5: Solve for x
    x = 22,026,246,607.36/204,789.88
  6. Step 6: Final answer
    x = 107,555.35

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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.