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Finding the Fourth Proportional to 228,808.20, 343,212.30 and 71,052.60

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Solution

The fourth proportional to 228,808.20, 343,212.30 and 71,052.60 is: 106,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,808.20 : 343,212.30 = 71,052.60 : x
  2. Step 2: Convert to fraction form
    228,808.20/343,212.30 = 71,052.60/x
  3. Step 3: Cross multiply
    228,808.20x = 343,212.30 × 71,052.60
  4. Step 4: Simplify right side
    228,808.20x = 24,386,126,266.98
  5. Step 5: Solve for x
    x = 24,386,126,266.98/228,808.20
  6. Step 6: Final answer
    x = 106,578.90

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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.