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Finding the Fourth Proportional to 324,436.14, 486,615.87 and 99,796.14

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Solution

The fourth proportional to 324,436.14, 486,615.87 and 99,796.14 is: 149,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,436.14 : 486,615.87 = 99,796.14 : x
  2. Step 2: Convert to fraction form
    324,436.14/486,615.87 = 99,796.14/x
  3. Step 3: Cross multiply
    324,436.14x = 486,615.87 × 99,796.14
  4. Step 4: Simplify right side
    324,436.14x = 48,562,385,488.74
  5. Step 5: Solve for x
    x = 48,562,385,488.74/324,436.14
  6. Step 6: Final answer
    x = 149,682.42

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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.