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Finding the Fourth Proportional to 186,380.83, 279,542.08 and 61,721.83

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Solution

The fourth proportional to 186,380.83, 279,542.08 and 61,721.83 is: 92,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,380.83 : 279,542.08 = 61,721.83 : x
  2. Step 2: Convert to fraction form
    186,380.83/279,542.08 = 61,721.83/x
  3. Step 3: Cross multiply
    186,380.83x = 279,542.08 × 61,721.83
  4. Step 4: Simplify right side
    186,380.83x = 17,253,848,739.61
  5. Step 5: Solve for x
    x = 17,253,848,739.61/186,380.83
  6. Step 6: Final answer
    x = 92,573.09

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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.