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Finding the Fourth Proportional to 208,443.01, 312,662.25 and 50,671.63

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Solution

The fourth proportional to 208,443.01, 312,662.25 and 50,671.63 is: 76,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,443.01 : 312,662.25 = 50,671.63 : x
  2. Step 2: Convert to fraction form
    208,443.01/312,662.25 = 50,671.63/x
  3. Step 3: Cross multiply
    208,443.01x = 312,662.25 × 50,671.63
  4. Step 4: Simplify right side
    208,443.01x = 15,843,105,846.97
  5. Step 5: Solve for x
    x = 15,843,105,846.97/208,443.01
  6. Step 6: Final answer
    x = 76,006.89

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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.