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Finding the Fourth Proportional to 93,967.88, 140,697.56 and 68,817.38

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Solution

The fourth proportional to 93,967.88, 140,697.56 and 68,817.38 is: 103,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,967.88 : 140,697.56 = 68,817.38 : x
  2. Step 2: Convert to fraction form
    93,967.88/140,697.56 = 68,817.38/x
  3. Step 3: Cross multiply
    93,967.88x = 140,697.56 × 68,817.38
  4. Step 4: Simplify right side
    93,967.88x = 9,682,437,451.59
  5. Step 5: Solve for x
    x = 9,682,437,451.59/93,967.88
  6. Step 6: Final answer
    x = 103,039.86

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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.