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Finding the Fourth Proportional to 367,551.60, 550,917.80 and 209,855.60

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Solution

The fourth proportional to 367,551.60, 550,917.80 and 209,855.60 is: 314,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,551.60 : 550,917.80 = 209,855.60 : x
  2. Step 2: Convert to fraction form
    367,551.60/550,917.80 = 209,855.60/x
  3. Step 3: Cross multiply
    367,551.60x = 550,917.80 × 209,855.60
  4. Step 4: Simplify right side
    367,551.60x = 115,613,185,469.68
  5. Step 5: Solve for x
    x = 115,613,185,469.68/367,551.60
  6. Step 6: Final answer
    x = 314,549.54

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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.