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Finding the Fourth Proportional to 100,976.69, 151,418.48 and 29,873.91

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Solution

The fourth proportional to 100,976.69, 151,418.48 and 29,873.91 is: 44,797.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,976.69 : 151,418.48 = 29,873.91 : x
  2. Step 2: Convert to fraction form
    100,976.69/151,418.48 = 29,873.91/x
  3. Step 3: Cross multiply
    100,976.69x = 151,418.48 × 29,873.91
  4. Step 4: Simplify right side
    100,976.69x = 4,523,461,735.17
  5. Step 5: Solve for x
    x = 4,523,461,735.17/100,976.69
  6. Step 6: Final answer
    x = 44,797.09

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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.