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Finding the Fourth Proportional to 228,212.40, 342,318.60 and 169,163.40

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Solution

The fourth proportional to 228,212.40, 342,318.60 and 169,163.40 is: 253,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,212.40 : 342,318.60 = 169,163.40 : x
  2. Step 2: Convert to fraction form
    228,212.40/342,318.60 = 169,163.40/x
  3. Step 3: Cross multiply
    228,212.40x = 342,318.60 × 169,163.40
  4. Step 4: Simplify right side
    228,212.40x = 57,907,778,259.24
  5. Step 5: Solve for x
    x = 57,907,778,259.24/228,212.40
  6. Step 6: Final answer
    x = 253,745.10

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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.