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Finding the Fourth Proportional to 168,409.80, 252,615.00 and 112,359.42

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Solution

The fourth proportional to 168,409.80, 252,615.00 and 112,359.42 is: 168,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,409.80 : 252,615.00 = 112,359.42 : x
  2. Step 2: Convert to fraction form
    168,409.80/252,615.00 = 112,359.42/x
  3. Step 3: Cross multiply
    168,409.80x = 252,615.00 × 112,359.42
  4. Step 4: Simplify right side
    168,409.80x = 28,383,675,304.65
  5. Step 5: Solve for x
    x = 28,383,675,304.65/168,409.80
  6. Step 6: Final answer
    x = 168,539.33

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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.