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Finding the Fourth Proportional to 75,951.77, 104,665.43 and 54,690.89

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Solution

The fourth proportional to 75,951.77, 104,665.43 and 54,690.89 is: 75,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,951.77 : 104,665.43 = 54,690.89 : x
  2. Step 2: Convert to fraction form
    75,951.77/104,665.43 = 54,690.89/x
  3. Step 3: Cross multiply
    75,951.77x = 104,665.43 × 54,690.89
  4. Step 4: Simplify right side
    75,951.77x = 5,724,245,132.33
  5. Step 5: Solve for x
    x = 5,724,245,132.33/75,951.77
  6. Step 6: Final answer
    x = 75,366.85

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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.