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Finding the Fourth Proportional to 215,449.60, 323,190.60 and 57,674.56

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Solution

The fourth proportional to 215,449.60, 323,190.60 and 57,674.56 is: 86,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,449.60 : 323,190.60 = 57,674.56 : x
  2. Step 2: Convert to fraction form
    215,449.60/323,190.60 = 57,674.56/x
  3. Step 3: Cross multiply
    215,449.60x = 323,190.60 × 57,674.56
  4. Step 4: Simplify right side
    215,449.60x = 18,639,875,651.14
  5. Step 5: Solve for x
    x = 18,639,875,651.14/215,449.60
  6. Step 6: Final answer
    x = 86,516.18

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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.