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Finding the Fourth Proportional to 208,469.39, 313,122.57 and 124,393.67

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Solution

The fourth proportional to 208,469.39, 313,122.57 and 124,393.67 is: 186,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,469.39 : 313,122.57 = 124,393.67 : x
  2. Step 2: Convert to fraction form
    208,469.39/313,122.57 = 124,393.67/x
  3. Step 3: Cross multiply
    208,469.39x = 313,122.57 × 124,393.67
  4. Step 4: Simplify right side
    208,469.39x = 38,950,464,076.52
  5. Step 5: Solve for x
    x = 38,950,464,076.52/208,469.39
  6. Step 6: Final answer
    x = 186,840.21

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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.