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Finding the Fourth Proportional to 440,963.86, 661,556.75 and 125,420.82

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Solution

The fourth proportional to 440,963.86, 661,556.75 and 125,420.82 is: 188,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,963.86 : 661,556.75 = 125,420.82 : x
  2. Step 2: Convert to fraction form
    440,963.86/661,556.75 = 125,420.82/x
  3. Step 3: Cross multiply
    440,963.86x = 661,556.75 × 125,420.82
  4. Step 4: Simplify right side
    440,963.86x = 82,972,990,061.54
  5. Step 5: Solve for x
    x = 82,972,990,061.54/440,963.86
  6. Step 6: Final answer
    x = 188,162.79

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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.