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Finding the Fourth Proportional to 104,496.68, 156,679.41 and 68,919.66

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Solution

The fourth proportional to 104,496.68, 156,679.41 and 68,919.66 is: 103,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,496.68 : 156,679.41 = 68,919.66 : x
  2. Step 2: Convert to fraction form
    104,496.68/156,679.41 = 68,919.66/x
  3. Step 3: Cross multiply
    104,496.68x = 156,679.41 × 68,919.66
  4. Step 4: Simplify right side
    104,496.68x = 10,798,291,924.65
  5. Step 5: Solve for x
    x = 10,798,291,924.65/104,496.68
  6. Step 6: Final answer
    x = 103,336.22

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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.