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Finding the Fourth Proportional to 213,554.66, 294,711.62 and 118,067.54

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Solution

The fourth proportional to 213,554.66, 294,711.62 and 118,067.54 is: 162,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,554.66 : 294,711.62 = 118,067.54 : x
  2. Step 2: Convert to fraction form
    213,554.66/294,711.62 = 118,067.54/x
  3. Step 3: Cross multiply
    213,554.66x = 294,711.62 × 118,067.54
  4. Step 4: Simplify right side
    213,554.66x = 34,795,873,918.92
  5. Step 5: Solve for x
    x = 34,795,873,918.92/213,554.66
  6. Step 6: Final answer
    x = 162,936.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.