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Finding the Fourth Proportional to 503,452.50, 755,203.64 and 143,676.38

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Solution

The fourth proportional to 503,452.50, 755,203.64 and 143,676.38 is: 215,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,452.50 : 755,203.64 = 143,676.38 : x
  2. Step 2: Convert to fraction form
    503,452.50/755,203.64 = 143,676.38/x
  3. Step 3: Cross multiply
    503,452.50x = 755,203.64 × 143,676.38
  4. Step 4: Simplify right side
    503,452.50x = 108,504,925,158.02
  5. Step 5: Solve for x
    x = 108,504,925,158.02/503,452.50
  6. Step 6: Final answer
    x = 215,521.67

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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.