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Finding the Fourth Proportional to 333,896.73, 500,837.79 and 81,178.56

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Solution

The fourth proportional to 333,896.73, 500,837.79 and 81,178.56 is: 121,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,896.73 : 500,837.79 = 81,178.56 : x
  2. Step 2: Convert to fraction form
    333,896.73/500,837.79 = 81,178.56/x
  3. Step 3: Cross multiply
    333,896.73x = 500,837.79 × 81,178.56
  4. Step 4: Simplify right side
    333,896.73x = 40,657,290,585.78
  5. Step 5: Solve for x
    x = 40,657,290,585.78/333,896.73
  6. Step 6: Final answer
    x = 121,766.06

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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.