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Finding the Fourth Proportional to 245,115.60, 367,673.40 and 185,629.20

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Solution

The fourth proportional to 245,115.60, 367,673.40 and 185,629.20 is: 278,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,115.60 : 367,673.40 = 185,629.20 : x
  2. Step 2: Convert to fraction form
    245,115.60/367,673.40 = 185,629.20/x
  3. Step 3: Cross multiply
    245,115.60x = 367,673.40 × 185,629.20
  4. Step 4: Simplify right side
    245,115.60x = 68,250,919,103.28
  5. Step 5: Solve for x
    x = 68,250,919,103.28/245,115.60
  6. Step 6: Final answer
    x = 278,443.80

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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.