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Finding the Fourth Proportional to 121,997.39, 182,729.56 and 50,703.87

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Solution

The fourth proportional to 121,997.39, 182,729.56 and 50,703.87 is: 75,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,997.39 : 182,729.56 = 50,703.87 : x
  2. Step 2: Convert to fraction form
    121,997.39/182,729.56 = 50,703.87/x
  3. Step 3: Cross multiply
    121,997.39x = 182,729.56 × 50,703.87
  4. Step 4: Simplify right side
    121,997.39x = 9,265,095,855.40
  5. Step 5: Solve for x
    x = 9,265,095,855.40/121,997.39
  6. Step 6: Final answer
    x = 75,945.04

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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.