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Finding the Fourth Proportional to 94,978.88, 142,517.52 and 48,231.75

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Solution

The fourth proportional to 94,978.88, 142,517.52 and 48,231.75 is: 72,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,978.88 : 142,517.52 = 48,231.75 : x
  2. Step 2: Convert to fraction form
    94,978.88/142,517.52 = 48,231.75/x
  3. Step 3: Cross multiply
    94,978.88x = 142,517.52 × 48,231.75
  4. Step 4: Simplify right side
    94,978.88x = 6,873,869,395.26
  5. Step 5: Solve for x
    x = 6,873,869,395.26/94,978.88
  6. Step 6: Final answer
    x = 72,372.61

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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.