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Finding the Fourth Proportional to 251,859.90, 377,789.44 and 172,734.24

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Solution

The fourth proportional to 251,859.90, 377,789.44 and 172,734.24 is: 259,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,859.90 : 377,789.44 = 172,734.24 : x
  2. Step 2: Convert to fraction form
    251,859.90/377,789.44 = 172,734.24/x
  3. Step 3: Cross multiply
    251,859.90x = 377,789.44 × 172,734.24
  4. Step 4: Simplify right side
    251,859.90x = 65,257,171,798.43
  5. Step 5: Solve for x
    x = 65,257,171,798.43/251,859.90
  6. Step 6: Final answer
    x = 259,101.08

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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.