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Finding the Fourth Proportional to 168,209.88, 252,313.54 and 49,881.56

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Solution

The fourth proportional to 168,209.88, 252,313.54 and 49,881.56 is: 74,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,209.88 : 252,313.54 = 49,881.56 : x
  2. Step 2: Convert to fraction form
    168,209.88/252,313.54 = 49,881.56/x
  3. Step 3: Cross multiply
    168,209.88x = 252,313.54 × 49,881.56
  4. Step 4: Simplify right side
    168,209.88x = 12,585,792,984.32
  5. Step 5: Solve for x
    x = 12,585,792,984.32/168,209.88
  6. Step 6: Final answer
    x = 74,821.96

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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.