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Finding the Fourth Proportional to 188,684.73, 282,969.45 and 53,759.79

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Solution

The fourth proportional to 188,684.73, 282,969.45 and 53,759.79 is: 80,623.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,684.73 : 282,969.45 = 53,759.79 : x
  2. Step 2: Convert to fraction form
    188,684.73/282,969.45 = 53,759.79/x
  3. Step 3: Cross multiply
    188,684.73x = 282,969.45 × 53,759.79
  4. Step 4: Simplify right side
    188,684.73x = 15,212,378,208.42
  5. Step 5: Solve for x
    x = 15,212,378,208.42/188,684.73
  6. Step 6: Final answer
    x = 80,623.26

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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.