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Finding the Fourth Proportional to 228,907.55, 343,246.43 and 108,928.73

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Solution

The fourth proportional to 228,907.55, 343,246.43 and 108,928.73 is: 163,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,907.55 : 343,246.43 = 108,928.73 : x
  2. Step 2: Convert to fraction form
    228,907.55/343,246.43 = 108,928.73/x
  3. Step 3: Cross multiply
    228,907.55x = 343,246.43 × 108,928.73
  4. Step 4: Simplify right side
    228,907.55x = 37,389,395,436.06
  5. Step 5: Solve for x
    x = 37,389,395,436.06/228,907.55
  6. Step 6: Final answer
    x = 163,338.41

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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.