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Finding the Fourth Proportional to 388,194.22, 581,449.22 and 188,094.96

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Solution

The fourth proportional to 388,194.22, 581,449.22 and 188,094.96 is: 281,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,194.22 : 581,449.22 = 188,094.96 : x
  2. Step 2: Convert to fraction form
    388,194.22/581,449.22 = 188,094.96/x
  3. Step 3: Cross multiply
    388,194.22x = 581,449.22 × 188,094.96
  4. Step 4: Simplify right side
    388,194.22x = 109,367,667,542.81
  5. Step 5: Solve for x
    x = 109,367,667,542.81/388,194.22
  6. Step 6: Final answer
    x = 281,734.40

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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.