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Finding the Fourth Proportional to 228,918.80, 343,480.60 and 104,195.60

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Solution

The fourth proportional to 228,918.80, 343,480.60 and 104,195.60 is: 156,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,918.80 : 343,480.60 = 104,195.60 : x
  2. Step 2: Convert to fraction form
    228,918.80/343,480.60 = 104,195.60/x
  3. Step 3: Cross multiply
    228,918.80x = 343,480.60 × 104,195.60
  4. Step 4: Simplify right side
    228,918.80x = 35,789,167,205.36
  5. Step 5: Solve for x
    x = 35,789,167,205.36/228,918.80
  6. Step 6: Final answer
    x = 156,340.01

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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.