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Finding the Fourth Proportional to 251,859.40, 377,788.69 and 172,733.74

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Solution

The fourth proportional to 251,859.40, 377,788.69 and 172,733.74 is: 259,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,859.40 : 377,788.69 = 172,733.74 : x
  2. Step 2: Convert to fraction form
    251,859.40/377,788.69 = 172,733.74/x
  3. Step 3: Cross multiply
    251,859.40x = 377,788.69 × 172,733.74
  4. Step 4: Simplify right side
    251,859.40x = 65,256,850,600.79
  5. Step 5: Solve for x
    x = 65,256,850,600.79/251,859.40
  6. Step 6: Final answer
    x = 259,100.32

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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.