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Finding the Fourth Proportional to 321,411.27, 482,207.18 and 119,004.33

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Solution

The fourth proportional to 321,411.27, 482,207.18 and 119,004.33 is: 178,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,411.27 : 482,207.18 = 119,004.33 : x
  2. Step 2: Convert to fraction form
    321,411.27/482,207.18 = 119,004.33/x
  3. Step 3: Cross multiply
    321,411.27x = 482,207.18 × 119,004.33
  4. Step 4: Simplify right side
    321,411.27x = 57,384,741,782.07
  5. Step 5: Solve for x
    x = 57,384,741,782.07/321,411.27
  6. Step 6: Final answer
    x = 178,539.92

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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.