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Finding the Fourth Proportional to 204,418.69, 306,603.88 and 54,670.58

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Solution

The fourth proportional to 204,418.69, 306,603.88 and 54,670.58 is: 81,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,418.69 : 306,603.88 = 54,670.58 : x
  2. Step 2: Convert to fraction form
    204,418.69/306,603.88 = 54,670.58/x
  3. Step 3: Cross multiply
    204,418.69x = 306,603.88 × 54,670.58
  4. Step 4: Simplify right side
    204,418.69x = 16,762,211,429.92
  5. Step 5: Solve for x
    x = 16,762,211,429.92/204,418.69
  6. Step 6: Final answer
    x = 81,999.41

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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.