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Finding the Fourth Proportional to 228,873.60, 343,618.20 and 134,200.80

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Solution

The fourth proportional to 228,873.60, 343,618.20 and 134,200.80 is: 201,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,873.60 : 343,618.20 = 134,200.80 : x
  2. Step 2: Convert to fraction form
    228,873.60/343,618.20 = 134,200.80/x
  3. Step 3: Cross multiply
    228,873.60x = 343,618.20 × 134,200.80
  4. Step 4: Simplify right side
    228,873.60x = 46,113,837,334.56
  5. Step 5: Solve for x
    x = 46,113,837,334.56/228,873.60
  6. Step 6: Final answer
    x = 201,481.68

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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.