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Finding the Fourth Proportional to 251,749.65, 377,625.42 and 101,992.80

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Solution

The fourth proportional to 251,749.65, 377,625.42 and 101,992.80 is: 152,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,749.65 : 377,625.42 = 101,992.80 : x
  2. Step 2: Convert to fraction form
    251,749.65/377,625.42 = 101,992.80/x
  3. Step 3: Cross multiply
    251,749.65x = 377,625.42 × 101,992.80
  4. Step 4: Simplify right side
    251,749.65x = 38,515,073,936.98
  5. Step 5: Solve for x
    x = 38,515,073,936.98/251,749.65
  6. Step 6: Final answer
    x = 152,989.58

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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.