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Finding the Fourth Proportional to 168,004.38, 251,919.06 and 79,234.02

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Solution

The fourth proportional to 168,004.38, 251,919.06 and 79,234.02 is: 118,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,004.38 : 251,919.06 = 79,234.02 : x
  2. Step 2: Convert to fraction form
    168,004.38/251,919.06 = 79,234.02/x
  3. Step 3: Cross multiply
    168,004.38x = 251,919.06 × 79,234.02
  4. Step 4: Simplify right side
    168,004.38x = 19,960,559,838.42
  5. Step 5: Solve for x
    x = 19,960,559,838.42/168,004.38
  6. Step 6: Final answer
    x = 118,809.76

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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.