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Finding the Fourth Proportional to 172,844.20, 259,266.30 and 162,346.60

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Solution

The fourth proportional to 172,844.20, 259,266.30 and 162,346.60 is: 243,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,844.20 : 259,266.30 = 162,346.60 : x
  2. Step 2: Convert to fraction form
    172,844.20/259,266.30 = 162,346.60/x
  3. Step 3: Cross multiply
    172,844.20x = 259,266.30 × 162,346.60
  4. Step 4: Simplify right side
    172,844.20x = 42,091,002,299.58
  5. Step 5: Solve for x
    x = 42,091,002,299.58/172,844.20
  6. Step 6: Final answer
    x = 243,519.90

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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.