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Finding the Fourth Proportional to 231,766.68, 347,643.54 and 74,004.60

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Solution

The fourth proportional to 231,766.68, 347,643.54 and 74,004.60 is: 111,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,766.68 : 347,643.54 = 74,004.60 : x
  2. Step 2: Convert to fraction form
    231,766.68/347,643.54 = 74,004.60/x
  3. Step 3: Cross multiply
    231,766.68x = 347,643.54 × 74,004.60
  4. Step 4: Simplify right side
    231,766.68x = 25,727,221,120.28
  5. Step 5: Solve for x
    x = 25,727,221,120.28/231,766.68
  6. Step 6: Final answer
    x = 111,004.83

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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.