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Finding the Fourth Proportional to 251,256.71, 346,593.91 and 154,393.27

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Solution

The fourth proportional to 251,256.71, 346,593.91 and 154,393.27 is: 212,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,256.71 : 346,593.91 = 154,393.27 : x
  2. Step 2: Convert to fraction form
    251,256.71/346,593.91 = 154,393.27/x
  3. Step 3: Cross multiply
    251,256.71x = 346,593.91 × 154,393.27
  4. Step 4: Simplify right side
    251,256.71x = 53,511,765,874.52
  5. Step 5: Solve for x
    x = 53,511,765,874.52/251,256.71
  6. Step 6: Final answer
    x = 212,976.46

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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.