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Finding the Fourth Proportional to 275,177.99, 412,739.34 and 75,518.48

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Solution

The fourth proportional to 275,177.99, 412,739.34 and 75,518.48 is: 113,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,177.99 : 412,739.34 = 75,518.48 : x
  2. Step 2: Convert to fraction form
    275,177.99/412,739.34 = 75,518.48/x
  3. Step 3: Cross multiply
    275,177.99x = 412,739.34 × 75,518.48
  4. Step 4: Simplify right side
    275,177.99x = 31,169,447,593.00
  5. Step 5: Solve for x
    x = 31,169,447,593.00/275,177.99
  6. Step 6: Final answer
    x = 113,270.13

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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.