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Finding the Fourth Proportional to 167,045.72, 250,449.54 and 78,250.79

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Solution

The fourth proportional to 167,045.72, 250,449.54 and 78,250.79 is: 117,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,045.72 : 250,449.54 = 78,250.79 : x
  2. Step 2: Convert to fraction form
    167,045.72/250,449.54 = 78,250.79/x
  3. Step 3: Cross multiply
    167,045.72x = 250,449.54 × 78,250.79
  4. Step 4: Simplify right side
    167,045.72x = 19,597,873,107.89
  5. Step 5: Solve for x
    x = 19,597,873,107.89/167,045.72
  6. Step 6: Final answer
    x = 117,320.42

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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.