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Finding the Fourth Proportional to 253,552.81, 379,768.60 and 173,400.82

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Solution

The fourth proportional to 253,552.81, 379,768.60 and 173,400.82 is: 259,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,552.81 : 379,768.60 = 173,400.82 : x
  2. Step 2: Convert to fraction form
    253,552.81/379,768.60 = 173,400.82/x
  3. Step 3: Cross multiply
    253,552.81x = 379,768.60 × 173,400.82
  4. Step 4: Simplify right side
    253,552.81x = 65,852,186,650.25
  5. Step 5: Solve for x
    x = 65,852,186,650.25/253,552.81
  6. Step 6: Final answer
    x = 259,717.83

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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.