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Finding the Fourth Proportional to 275,640.48, 412,907.12 and 125,674.47

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Solution

The fourth proportional to 275,640.48, 412,907.12 and 125,674.47 is: 188,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,640.48 : 412,907.12 = 125,674.47 : x
  2. Step 2: Convert to fraction form
    275,640.48/412,907.12 = 125,674.47/x
  3. Step 3: Cross multiply
    275,640.48x = 412,907.12 × 125,674.47
  4. Step 4: Simplify right side
    275,640.48x = 51,891,883,465.23
  5. Step 5: Solve for x
    x = 51,891,883,465.23/275,640.48
  6. Step 6: Final answer
    x = 188,259.30

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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.