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Finding the Fourth Proportional to 143,031.98, 214,540.98 and 53,092.20

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Solution

The fourth proportional to 143,031.98, 214,540.98 and 53,092.20 is: 79,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,031.98 : 214,540.98 = 53,092.20 : x
  2. Step 2: Convert to fraction form
    143,031.98/214,540.98 = 53,092.20/x
  3. Step 3: Cross multiply
    143,031.98x = 214,540.98 × 53,092.20
  4. Step 4: Simplify right side
    143,031.98x = 11,390,452,618.36
  5. Step 5: Solve for x
    x = 11,390,452,618.36/143,031.98
  6. Step 6: Final answer
    x = 79,635.71

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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.