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Finding the Fourth Proportional to 268,882.50, 403,295.79 and 168,745.86

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Solution

The fourth proportional to 268,882.50, 403,295.79 and 168,745.86 is: 253,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,882.50 : 403,295.79 = 168,745.86 : x
  2. Step 2: Convert to fraction form
    268,882.50/403,295.79 = 168,745.86/x
  3. Step 3: Cross multiply
    268,882.50x = 403,295.79 × 168,745.86
  4. Step 4: Simplify right side
    268,882.50x = 68,054,494,917.93
  5. Step 5: Solve for x
    x = 68,054,494,917.93/268,882.50
  6. Step 6: Final answer
    x = 253,101.24

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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.