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Finding the Fourth Proportional to 373,755.89, 515,750.00 and 208,171.22

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Solution

The fourth proportional to 373,755.89, 515,750.00 and 208,171.22 is: 287,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,755.89 : 515,750.00 = 208,171.22 : x
  2. Step 2: Convert to fraction form
    373,755.89/515,750.00 = 208,171.22/x
  3. Step 3: Cross multiply
    373,755.89x = 515,750.00 × 208,171.22
  4. Step 4: Simplify right side
    373,755.89x = 107,364,303,095.39
  5. Step 5: Solve for x
    x = 107,364,303,095.39/373,755.89
  6. Step 6: Final answer
    x = 287,257.83

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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.