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Finding the Fourth Proportional to 252,306.36, 378,459.56 and 173,180.72

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Solution

The fourth proportional to 252,306.36, 378,459.56 and 173,180.72 is: 259,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,306.36 : 378,459.56 = 173,180.72 : x
  2. Step 2: Convert to fraction form
    252,306.36/378,459.56 = 173,180.72/x
  3. Step 3: Cross multiply
    252,306.36x = 378,459.56 × 173,180.72
  4. Step 4: Simplify right side
    252,306.36x = 65,541,899,091.68
  5. Step 5: Solve for x
    x = 65,541,899,091.68/252,306.36
  6. Step 6: Final answer
    x = 259,771.09

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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.