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Finding the Fourth Proportional to 336,670.75, 505,089.33 and 100,013.05

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Solution

The fourth proportional to 336,670.75, 505,089.33 and 100,013.05 is: 150,044.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,670.75 : 505,089.33 = 100,013.05 : x
  2. Step 2: Convert to fraction form
    336,670.75/505,089.33 = 100,013.05/x
  3. Step 3: Cross multiply
    336,670.75x = 505,089.33 × 100,013.05
  4. Step 4: Simplify right side
    336,670.75x = 50,515,524,415.76
  5. Step 5: Solve for x
    x = 50,515,524,415.76/336,670.75
  6. Step 6: Final answer
    x = 150,044.29

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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.