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Finding the Fourth Proportional to 172,996.60, 259,350.90 and 73,233.40

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Solution

The fourth proportional to 172,996.60, 259,350.90 and 73,233.40 is: 109,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,996.60 : 259,350.90 = 73,233.40 : x
  2. Step 2: Convert to fraction form
    172,996.60/259,350.90 = 73,233.40/x
  3. Step 3: Cross multiply
    172,996.60x = 259,350.90 × 73,233.40
  4. Step 4: Simplify right side
    172,996.60x = 18,993,148,200.06
  5. Step 5: Solve for x
    x = 18,993,148,200.06/172,996.60
  6. Step 6: Final answer
    x = 109,789.14

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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.