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Finding the Fourth Proportional to 503,451.62, 755,202.32 and 143,675.50

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Solution

The fourth proportional to 503,451.62, 755,202.32 and 143,675.50 is: 215,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,451.62 : 755,202.32 = 143,675.50 : x
  2. Step 2: Convert to fraction form
    503,451.62/755,202.32 = 143,675.50/x
  3. Step 3: Cross multiply
    503,451.62x = 755,202.32 × 143,675.50
  4. Step 4: Simplify right side
    503,451.62x = 108,504,071,286.35
  5. Step 5: Solve for x
    x = 108,504,071,286.35/503,451.62
  6. Step 6: Final answer
    x = 215,520.35

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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.