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Finding the Fourth Proportional to 367,093.20, 550,639.80 and 209,629.20

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Solution

The fourth proportional to 367,093.20, 550,639.80 and 209,629.20 is: 314,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,093.20 : 550,639.80 = 209,629.20 : x
  2. Step 2: Convert to fraction form
    367,093.20/550,639.80 = 209,629.20/x
  3. Step 3: Cross multiply
    367,093.20x = 550,639.80 × 209,629.20
  4. Step 4: Simplify right side
    367,093.20x = 115,430,180,762.16
  5. Step 5: Solve for x
    x = 115,430,180,762.16/367,093.20
  6. Step 6: Final answer
    x = 314,443.80

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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.