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Finding the Fourth Proportional to 324,096.40, 486,290.40 and 113,885.20

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Solution

The fourth proportional to 324,096.40, 486,290.40 and 113,885.20 is: 170,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,096.40 : 486,290.40 = 113,885.20 : x
  2. Step 2: Convert to fraction form
    324,096.40/486,290.40 = 113,885.20/x
  3. Step 3: Cross multiply
    324,096.40x = 486,290.40 × 113,885.20
  4. Step 4: Simplify right side
    324,096.40x = 55,381,279,462.08
  5. Step 5: Solve for x
    x = 55,381,279,462.08/324,096.40
  6. Step 6: Final answer
    x = 170,879.03

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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.