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Finding the Fourth Proportional to 172,992.87, 238,738.46 and 97,539.75

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Solution

The fourth proportional to 172,992.87, 238,738.46 and 97,539.75 is: 134,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,992.87 : 238,738.46 = 97,539.75 : x
  2. Step 2: Convert to fraction form
    172,992.87/238,738.46 = 97,539.75/x
  3. Step 3: Cross multiply
    172,992.87x = 238,738.46 × 97,539.75
  4. Step 4: Simplify right side
    172,992.87x = 23,286,489,216.09
  5. Step 5: Solve for x
    x = 23,286,489,216.09/172,992.87
  6. Step 6: Final answer
    x = 134,609.53

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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.