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Finding the Fourth Proportional to 217,992.60, 326,999.70 and 113,016.60

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Solution

The fourth proportional to 217,992.60, 326,999.70 and 113,016.60 is: 169,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,992.60 : 326,999.70 = 113,016.60 : x
  2. Step 2: Convert to fraction form
    217,992.60/326,999.70 = 113,016.60/x
  3. Step 3: Cross multiply
    217,992.60x = 326,999.70 × 113,016.60
  4. Step 4: Simplify right side
    217,992.60x = 36,956,394,295.02
  5. Step 5: Solve for x
    x = 36,956,394,295.02/217,992.60
  6. Step 6: Final answer
    x = 169,530.50

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1.5x scale

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.