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Finding the Fourth Proportional to 503,765.20, 755,631.60 and 166,821.40

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Solution

The fourth proportional to 503,765.20, 755,631.60 and 166,821.40 is: 250,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,765.20 : 755,631.60 = 166,821.40 : x
  2. Step 2: Convert to fraction form
    503,765.20/755,631.60 = 166,821.40/x
  3. Step 3: Cross multiply
    503,765.20x = 755,631.60 × 166,821.40
  4. Step 4: Simplify right side
    503,765.20x = 126,055,521,396.24
  5. Step 5: Solve for x
    x = 126,055,521,396.24/503,765.20
  6. Step 6: Final answer
    x = 250,226.74

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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.