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Finding the Fourth Proportional to 367,218.75, 550,831.20 and 100,993.87

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Solution

The fourth proportional to 367,218.75, 550,831.20 and 100,993.87 is: 151,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,218.75 : 550,831.20 = 100,993.87 : x
  2. Step 2: Convert to fraction form
    367,218.75/550,831.20 = 100,993.87/x
  3. Step 3: Cross multiply
    367,218.75x = 550,831.20 × 100,993.87
  4. Step 4: Simplify right side
    367,218.75x = 55,630,571,345.62
  5. Step 5: Solve for x
    x = 55,630,571,345.62/367,218.75
  6. Step 6: Final answer
    x = 151,491.64

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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.