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Finding the Fourth Proportional to 94,991.69, 131,089.91 and 54,712.68

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Solution

The fourth proportional to 94,991.69, 131,089.91 and 54,712.68 is: 75,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,991.69 : 131,089.91 = 54,712.68 : x
  2. Step 2: Convert to fraction form
    94,991.69/131,089.91 = 54,712.68/x
  3. Step 3: Cross multiply
    94,991.69x = 131,089.91 × 54,712.68
  4. Step 4: Simplify right side
    94,991.69x = 7,172,280,023.50
  5. Step 5: Solve for x
    x = 7,172,280,023.50/94,991.69
  6. Step 6: Final answer
    x = 75,504.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.