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Finding the Fourth Proportional to 451,755.20, 677,695.26 and 152,321.42

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Solution

The fourth proportional to 451,755.20, 677,695.26 and 152,321.42 is: 228,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,755.20 : 677,695.26 = 152,321.42 : x
  2. Step 2: Convert to fraction form
    451,755.20/677,695.26 = 152,321.42/x
  3. Step 3: Cross multiply
    451,755.20x = 677,695.26 × 152,321.42
  4. Step 4: Simplify right side
    451,755.20x = 103,227,504,330.47
  5. Step 5: Solve for x
    x = 103,227,504,330.47/451,755.20
  6. Step 6: Final answer
    x = 228,503.19

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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.