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Finding the Fourth Proportional to 324,502.49, 486,754.09 and 84,616.18

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Solution

The fourth proportional to 324,502.49, 486,754.09 and 84,616.18 is: 126,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,502.49 : 486,754.09 = 84,616.18 : x
  2. Step 2: Convert to fraction form
    324,502.49/486,754.09 = 84,616.18/x
  3. Step 3: Cross multiply
    324,502.49x = 486,754.09 × 84,616.18
  4. Step 4: Simplify right side
    324,502.49x = 41,187,270,742.72
  5. Step 5: Solve for x
    x = 41,187,270,742.72/324,502.49
  6. Step 6: Final answer
    x = 126,924.36

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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.