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Finding the Fourth Proportional to 115,872.67, 174,100.16 and 73,771.54

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Solution

The fourth proportional to 115,872.67, 174,100.16 and 73,771.54 is: 110,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,872.67 : 174,100.16 = 73,771.54 : x
  2. Step 2: Convert to fraction form
    115,872.67/174,100.16 = 73,771.54/x
  3. Step 3: Cross multiply
    115,872.67x = 174,100.16 × 73,771.54
  4. Step 4: Simplify right side
    115,872.67x = 12,843,636,917.45
  5. Step 5: Solve for x
    x = 12,843,636,917.45/115,872.67
  6. Step 6: Final answer
    x = 110,842.68

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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.