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Finding the Fourth Proportional to 115,866.33, 173,832.30 and 68,523.45

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Solution

The fourth proportional to 115,866.33, 173,832.30 and 68,523.45 is: 102,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,866.33 : 173,832.30 = 68,523.45 : x
  2. Step 2: Convert to fraction form
    115,866.33/173,832.30 = 68,523.45/x
  3. Step 3: Cross multiply
    115,866.33x = 173,832.30 × 68,523.45
  4. Step 4: Simplify right side
    115,866.33x = 11,911,588,917.44
  5. Step 5: Solve for x
    x = 11,911,588,917.44/115,866.33
  6. Step 6: Final answer
    x = 102,804.58

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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.