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Finding the Fourth Proportional to 336,109.20, 504,163.80 and 149,139.60

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Solution

The fourth proportional to 336,109.20, 504,163.80 and 149,139.60 is: 223,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,109.20 : 504,163.80 = 149,139.60 : x
  2. Step 2: Convert to fraction form
    336,109.20/504,163.80 = 149,139.60/x
  3. Step 3: Cross multiply
    336,109.20x = 504,163.80 × 149,139.60
  4. Step 4: Simplify right side
    336,109.20x = 75,190,787,466.48
  5. Step 5: Solve for x
    x = 75,190,787,466.48/336,109.20
  6. Step 6: Final answer
    x = 223,709.40

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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.