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Finding the Fourth Proportional to 324,059.17, 486,112.10 and 124,379.55

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Solution

The fourth proportional to 324,059.17, 486,112.10 and 124,379.55 is: 186,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,059.17 : 486,112.10 = 124,379.55 : x
  2. Step 2: Convert to fraction form
    324,059.17/486,112.10 = 124,379.55/x
  3. Step 3: Cross multiply
    324,059.17x = 486,112.10 × 124,379.55
  4. Step 4: Simplify right side
    324,059.17x = 60,462,405,456.21
  5. Step 5: Solve for x
    x = 60,462,405,456.21/324,059.17
  6. Step 6: Final answer
    x = 186,578.29

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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.