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Finding the Fourth Proportional to 194,060.89, 290,992.89 and 88,789.65

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Solution

The fourth proportional to 194,060.89, 290,992.89 and 88,789.65 is: 133,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,060.89 : 290,992.89 = 88,789.65 : x
  2. Step 2: Convert to fraction form
    194,060.89/290,992.89 = 88,789.65/x
  3. Step 3: Cross multiply
    194,060.89x = 290,992.89 × 88,789.65
  4. Step 4: Simplify right side
    194,060.89x = 25,837,156,855.59
  5. Step 5: Solve for x
    x = 25,837,156,855.59/194,060.89
  6. Step 6: Final answer
    x = 133,139.43

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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.