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Finding the Fourth Proportional to 79,992.88, 119,892.10 and 60,207.84

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Solution

The fourth proportional to 79,992.88, 119,892.10 and 60,207.84 is: 90,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,992.88 : 119,892.10 = 60,207.84 : x
  2. Step 2: Convert to fraction form
    79,992.88/119,892.10 = 60,207.84/x
  3. Step 3: Cross multiply
    79,992.88x = 119,892.10 × 60,207.84
  4. Step 4: Simplify right side
    79,992.88x = 7,218,444,374.06
  5. Step 5: Solve for x
    x = 7,218,444,374.06/79,992.88
  6. Step 6: Final answer
    x = 90,238.59

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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.