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Finding the Fourth Proportional to 228,907.05, 343,245.68 and 108,928.23

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Solution

The fourth proportional to 228,907.05, 343,245.68 and 108,928.23 is: 163,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,907.05 : 343,245.68 = 108,928.23 : x
  2. Step 2: Convert to fraction form
    228,907.05/343,245.68 = 108,928.23/x
  3. Step 3: Cross multiply
    228,907.05x = 343,245.68 × 108,928.23
  4. Step 4: Simplify right side
    228,907.05x = 37,389,144,377.55
  5. Step 5: Solve for x
    x = 37,389,144,377.55/228,907.05
  6. Step 6: Final answer
    x = 163,337.67

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1.5x scale

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.