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Finding the Fourth Proportional to 236,940.80, 355,281.60 and 96,540.80

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Solution

The fourth proportional to 236,940.80, 355,281.60 and 96,540.80 is: 144,758.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,940.80 : 355,281.60 = 96,540.80 : x
  2. Step 2: Convert to fraction form
    236,940.80/355,281.60 = 96,540.80/x
  3. Step 3: Cross multiply
    236,940.80x = 355,281.60 × 96,540.80
  4. Step 4: Simplify right side
    236,940.80x = 34,299,169,889.28
  5. Step 5: Solve for x
    x = 34,299,169,889.28/236,940.80
  6. Step 6: Final answer
    x = 144,758.39

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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.