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Finding the Fourth Proportional to 367,040.05, 550,396.05 and 142,325.80

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Solution

The fourth proportional to 367,040.05, 550,396.05 and 142,325.80 is: 213,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,040.05 : 550,396.05 = 142,325.80 : x
  2. Step 2: Convert to fraction form
    367,040.05/550,396.05 = 142,325.80/x
  3. Step 3: Cross multiply
    367,040.05x = 550,396.05 × 142,325.80
  4. Step 4: Simplify right side
    367,040.05x = 78,335,558,133.09
  5. Step 5: Solve for x
    x = 78,335,558,133.09/367,040.05
  6. Step 6: Final answer
    x = 213,425.10

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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.