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Finding the Fourth Proportional to 168,145.28, 251,987.52 and 163,099.52

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Solution

The fourth proportional to 168,145.28, 251,987.52 and 163,099.52 is: 244,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,145.28 : 251,987.52 = 163,099.52 : x
  2. Step 2: Convert to fraction form
    168,145.28/251,987.52 = 163,099.52/x
  3. Step 3: Cross multiply
    168,145.28x = 251,987.52 × 163,099.52
  4. Step 4: Simplify right side
    168,145.28x = 41,099,043,557.99
  5. Step 5: Solve for x
    x = 41,099,043,557.99/168,145.28
  6. Step 6: Final answer
    x = 244,425.79

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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.