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Finding the Fourth Proportional to 208,690.89, 313,055.10 and 58,932.69

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Solution

The fourth proportional to 208,690.89, 313,055.10 and 58,932.69 is: 88,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,690.89 : 313,055.10 = 58,932.69 : x
  2. Step 2: Convert to fraction form
    208,690.89/313,055.10 = 58,932.69/x
  3. Step 3: Cross multiply
    208,690.89x = 313,055.10 × 58,932.69
  4. Step 4: Simplify right side
    208,690.89x = 18,449,179,161.22
  5. Step 5: Solve for x
    x = 18,449,179,161.22/208,690.89
  6. Step 6: Final answer
    x = 88,404.33

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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.