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Finding the Fourth Proportional to 355,496.52, 533,245.32 and 142,360.41

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Solution

The fourth proportional to 355,496.52, 533,245.32 and 142,360.41 is: 213,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,496.52 : 533,245.32 = 142,360.41 : x
  2. Step 2: Convert to fraction form
    355,496.52/533,245.32 = 142,360.41/x
  3. Step 3: Cross multiply
    355,496.52x = 533,245.32 × 142,360.41
  4. Step 4: Simplify right side
    355,496.52x = 75,913,022,385.78
  5. Step 5: Solve for x
    x = 75,913,022,385.78/355,496.52
  6. Step 6: Final answer
    x = 213,540.83

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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.