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Finding the Fourth Proportional to 118,515.62, 177,822.84 and 52,003.56

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Solution

The fourth proportional to 118,515.62, 177,822.84 and 52,003.56 is: 78,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.62 : 177,822.84 = 52,003.56 : x
  2. Step 2: Convert to fraction form
    118,515.62/177,822.84 = 52,003.56/x
  3. Step 3: Cross multiply
    118,515.62x = 177,822.84 × 52,003.56
  4. Step 4: Simplify right side
    118,515.62x = 9,247,420,729.31
  5. Step 5: Solve for x
    x = 9,247,420,729.31/118,515.62
  6. Step 6: Final answer
    x = 78,027.02

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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.