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Finding the Fourth Proportional to 188,940.35, 260,725.65 and 104,057.39

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Solution

The fourth proportional to 188,940.35, 260,725.65 and 104,057.39 is: 143,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,940.35 : 260,725.65 = 104,057.39 : x
  2. Step 2: Convert to fraction form
    188,940.35/260,725.65 = 104,057.39/x
  3. Step 3: Cross multiply
    188,940.35x = 260,725.65 × 104,057.39
  4. Step 4: Simplify right side
    188,940.35x = 27,130,430,645.05
  5. Step 5: Solve for x
    x = 27,130,430,645.05/188,940.35
  6. Step 6: Final answer
    x = 143,592.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.