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Finding the Fourth Proportional to 356,520.98, 534,403.30 and 166,821.52

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Solution

The fourth proportional to 356,520.98, 534,403.30 and 166,821.52 is: 250,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,520.98 : 534,403.30 = 166,821.52 : x
  2. Step 2: Convert to fraction form
    356,520.98/534,403.30 = 166,821.52/x
  3. Step 3: Cross multiply
    356,520.98x = 534,403.30 × 166,821.52
  4. Step 4: Simplify right side
    356,520.98x = 89,149,970,799.02
  5. Step 5: Solve for x
    x = 89,149,970,799.02/356,520.98
  6. Step 6: Final answer
    x = 250,055.33

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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.