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Finding the Fourth Proportional to 367,067.05, 550,436.55 and 142,352.80

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Solution

The fourth proportional to 367,067.05, 550,436.55 and 142,352.80 is: 213,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,067.05 : 550,436.55 = 142,352.80 : x
  2. Step 2: Convert to fraction form
    367,067.05/550,436.55 = 142,352.80/x
  3. Step 3: Cross multiply
    367,067.05x = 550,436.55 × 142,352.80
  4. Step 4: Simplify right side
    367,067.05x = 78,356,184,114.84
  5. Step 5: Solve for x
    x = 78,356,184,114.84/367,067.05
  6. Step 6: Final answer
    x = 213,465.59

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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.