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Finding the Fourth Proportional to 227,575.20, 340,585.20 and 199,581.60

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Solution

The fourth proportional to 227,575.20, 340,585.20 and 199,581.60 is: 298,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,575.20 : 340,585.20 = 199,581.60 : x
  2. Step 2: Convert to fraction form
    227,575.20/340,585.20 = 199,581.60/x
  3. Step 3: Cross multiply
    227,575.20x = 340,585.20 × 199,581.60
  4. Step 4: Simplify right side
    227,575.20x = 67,974,539,152.32
  5. Step 5: Solve for x
    x = 67,974,539,152.32/227,575.20
  6. Step 6: Final answer
    x = 298,690.45

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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.