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Finding the Fourth Proportional to 186,067.36, 279,153.92 and 91,326

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Solution

The fourth proportional to 186,067.36, 279,153.92 and 91,326 is: 137,014.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,067.36 : 279,153.92 = 91,326 : x
  2. Step 2: Convert to fraction form
    186,067.36/279,153.92 = 91,326/x
  3. Step 3: Cross multiply
    186,067.36x = 279,153.92 × 91,326
  4. Step 4: Simplify right side
    186,067.36x = 25,494,010,897.92
  5. Step 5: Solve for x
    x = 25,494,010,897.92/186,067.36
  6. Step 6: Final answer
    x = 137,014.95

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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.