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Finding the Fourth Proportional to 315,067.36, 472,520.40 and 93,399.52

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Solution

The fourth proportional to 315,067.36, 472,520.40 and 93,399.52 is: 140,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,067.36 : 472,520.40 = 93,399.52 : x
  2. Step 2: Convert to fraction form
    315,067.36/472,520.40 = 93,399.52/x
  3. Step 3: Cross multiply
    315,067.36x = 472,520.40 × 93,399.52
  4. Step 4: Simplify right side
    315,067.36x = 44,133,178,550.21
  5. Step 5: Solve for x
    x = 44,133,178,550.21/315,067.36
  6. Step 6: Final answer
    x = 140,075.37

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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.