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Finding the Fourth Proportional to 367,093.70, 550,640.55 and 209,629.70

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Solution

The fourth proportional to 367,093.70, 550,640.55 and 209,629.70 is: 314,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,093.70 : 550,640.55 = 209,629.70 : x
  2. Step 2: Convert to fraction form
    367,093.70/550,640.55 = 209,629.70/x
  3. Step 3: Cross multiply
    367,093.70x = 550,640.55 × 209,629.70
  4. Step 4: Simplify right side
    367,093.70x = 115,430,613,304.34
  5. Step 5: Solve for x
    x = 115,430,613,304.34/367,093.70
  6. Step 6: Final answer
    x = 314,444.55

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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.