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Finding the Fourth Proportional to 80,568.90, 120,893.45 and 60,967.71

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Solution

The fourth proportional to 80,568.90, 120,893.45 and 60,967.71 is: 91,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568.90 : 120,893.45 = 60,967.71 : x
  2. Step 2: Convert to fraction form
    80,568.90/120,893.45 = 60,967.71/x
  3. Step 3: Cross multiply
    80,568.90x = 120,893.45 × 60,967.71
  4. Step 4: Simplify right side
    80,568.90x = 7,370,596,495.66
  5. Step 5: Solve for x
    x = 7,370,596,495.66/80,568.90
  6. Step 6: Final answer
    x = 91,481.91

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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.