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Finding the Fourth Proportional to 261,797.27, 392,445.41 and 84,179.25

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Solution

The fourth proportional to 261,797.27, 392,445.41 and 84,179.25 is: 126,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,797.27 : 392,445.41 = 84,179.25 : x
  2. Step 2: Convert to fraction form
    261,797.27/392,445.41 = 84,179.25/x
  3. Step 3: Cross multiply
    261,797.27x = 392,445.41 × 84,179.25
  4. Step 4: Simplify right side
    261,797.27x = 33,035,759,858.85
  5. Step 5: Solve for x
    x = 33,035,759,858.85/261,797.27
  6. Step 6: Final answer
    x = 126,188.33

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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.