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Finding the Fourth Proportional to 217,665.96, 326,376.42 and 75,444.60

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Solution

The fourth proportional to 217,665.96, 326,376.42 and 75,444.60 is: 113,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,665.96 : 326,376.42 = 75,444.60 : x
  2. Step 2: Convert to fraction form
    217,665.96/326,376.42 = 75,444.60/x
  3. Step 3: Cross multiply
    217,665.96x = 326,376.42 × 75,444.60
  4. Step 4: Simplify right side
    217,665.96x = 24,623,338,456.33
  5. Step 5: Solve for x
    x = 24,623,338,456.33/217,665.96
  6. Step 6: Final answer
    x = 113,124.43

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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.