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Finding the Fourth Proportional to 167,911.67, 251,867.55 and 55,561.70

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Solution

The fourth proportional to 167,911.67, 251,867.55 and 55,561.70 is: 83,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,911.67 : 251,867.55 = 55,561.70 : x
  2. Step 2: Convert to fraction form
    167,911.67/251,867.55 = 55,561.70/x
  3. Step 3: Cross multiply
    167,911.67x = 251,867.55 × 55,561.70
  4. Step 4: Simplify right side
    167,911.67x = 13,994,189,252.84
  5. Step 5: Solve for x
    x = 13,994,189,252.84/167,911.67
  6. Step 6: Final answer
    x = 83,342.56

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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.