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Finding the Fourth Proportional to 259,408.96, 388,996.80 and 251,244.16

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Solution

The fourth proportional to 259,408.96, 388,996.80 and 251,244.16 is: 376,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,408.96 : 388,996.80 = 251,244.16 : x
  2. Step 2: Convert to fraction form
    259,408.96/388,996.80 = 251,244.16/x
  3. Step 3: Cross multiply
    259,408.96x = 388,996.80 × 251,244.16
  4. Step 4: Simplify right side
    259,408.96x = 97,733,174,258.69
  5. Step 5: Solve for x
    x = 97,733,174,258.69/259,408.96
  6. Step 6: Final answer
    x = 376,753.27

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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.