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Finding the Fourth Proportional to 104,114.92, 156,014.70 and 68,928.52

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Solution

The fourth proportional to 104,114.92, 156,014.70 and 68,928.52 is: 103,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,114.92 : 156,014.70 = 68,928.52 : x
  2. Step 2: Convert to fraction form
    104,114.92/156,014.70 = 68,928.52/x
  3. Step 3: Cross multiply
    104,114.92x = 156,014.70 × 68,928.52
  4. Step 4: Simplify right side
    104,114.92x = 10,753,862,369.24
  5. Step 5: Solve for x
    x = 10,753,862,369.24/104,114.92
  6. Step 6: Final answer
    x = 103,288.39

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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.