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Finding the Fourth Proportional to 324,368.70, 486,503.16 and 108,231.29

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Solution

The fourth proportional to 324,368.70, 486,503.16 and 108,231.29 is: 162,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,368.70 : 486,503.16 = 108,231.29 : x
  2. Step 2: Convert to fraction form
    324,368.70/486,503.16 = 108,231.29/x
  3. Step 3: Cross multiply
    324,368.70x = 486,503.16 × 108,231.29
  4. Step 4: Simplify right side
    324,368.70x = 52,654,864,190.68
  5. Step 5: Solve for x
    x = 52,654,864,190.68/324,368.70
  6. Step 6: Final answer
    x = 162,330.29

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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.