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Finding the Fourth Proportional to 384,756.80, 577,198.44 and 118,517.36

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Solution

The fourth proportional to 384,756.80, 577,198.44 and 118,517.36 is: 177,795.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,756.80 : 577,198.44 = 118,517.36 : x
  2. Step 2: Convert to fraction form
    384,756.80/577,198.44 = 118,517.36/x
  3. Step 3: Cross multiply
    384,756.80x = 577,198.44 × 118,517.36
  4. Step 4: Simplify right side
    384,756.80x = 68,408,035,304.92
  5. Step 5: Solve for x
    x = 68,408,035,304.92/384,756.80
  6. Step 6: Final answer
    x = 177,795.52

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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.