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Finding the Fourth Proportional to 355,761.21, 532,786.64 and 203,496.80

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Solution

The fourth proportional to 355,761.21, 532,786.64 and 203,496.80 is: 304,756.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,761.21 : 532,786.64 = 203,496.80 : x
  2. Step 2: Convert to fraction form
    355,761.21/532,786.64 = 203,496.80/x
  3. Step 3: Cross multiply
    355,761.21x = 532,786.64 × 203,496.80
  4. Step 4: Simplify right side
    355,761.21x = 108,420,372,641.34
  5. Step 5: Solve for x
    x = 108,420,372,641.34/355,761.21
  6. Step 6: Final answer
    x = 304,756.03

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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.