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Finding the Fourth Proportional to 253,173.74, 379,947.51 and 120,054.44

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Solution

The fourth proportional to 253,173.74, 379,947.51 and 120,054.44 is: 180,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,173.74 : 379,947.51 = 120,054.44 : x
  2. Step 2: Convert to fraction form
    253,173.74/379,947.51 = 120,054.44/x
  3. Step 3: Cross multiply
    253,173.74x = 379,947.51 × 120,054.44
  4. Step 4: Simplify right side
    253,173.74x = 45,614,385,542.44
  5. Step 5: Solve for x
    x = 45,614,385,542.44/253,173.74
  6. Step 6: Final answer
    x = 180,170.29

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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.