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Finding the Fourth Proportional to 275,133.15, 412,699.73 and 125,665.37

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Solution

The fourth proportional to 275,133.15, 412,699.73 and 125,665.37 is: 188,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,133.15 : 412,699.73 = 125,665.37 : x
  2. Step 2: Convert to fraction form
    275,133.15/412,699.73 = 125,665.37/x
  3. Step 3: Cross multiply
    275,133.15x = 412,699.73 × 125,665.37
  4. Step 4: Simplify right side
    275,133.15x = 51,862,063,125.15
  5. Step 5: Solve for x
    x = 51,862,063,125.15/275,133.15
  6. Step 6: Final answer
    x = 188,498.05

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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.