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Finding the Fourth Proportional to 324,062.70, 485,863.65 and 124,305.90

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Solution

The fourth proportional to 324,062.70, 485,863.65 and 124,305.90 is: 186,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,062.70 : 485,863.65 = 124,305.90 : x
  2. Step 2: Convert to fraction form
    324,062.70/485,863.65 = 124,305.90/x
  3. Step 3: Cross multiply
    324,062.70x = 485,863.65 × 124,305.90
  4. Step 4: Simplify right side
    324,062.70x = 60,395,718,290.54
  5. Step 5: Solve for x
    x = 60,395,718,290.54/324,062.70
  6. Step 6: Final answer
    x = 186,370.47

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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.