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Finding the Fourth Proportional to 350,865.57, 484,192.31 and 189,720.93

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Solution

The fourth proportional to 350,865.57, 484,192.31 and 189,720.93 is: 261,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,865.57 : 484,192.31 = 189,720.93 : x
  2. Step 2: Convert to fraction form
    350,865.57/484,192.31 = 189,720.93/x
  3. Step 3: Cross multiply
    350,865.57x = 484,192.31 × 189,720.93
  4. Step 4: Simplify right side
    350,865.57x = 91,861,414,403.44
  5. Step 5: Solve for x
    x = 91,861,414,403.44/350,865.57
  6. Step 6: Final answer
    x = 261,813.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.