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Finding the Fourth Proportional to 95,600.81, 143,420.37 and 53,540.72

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Solution

The fourth proportional to 95,600.81, 143,420.37 and 53,540.72 is: 80,321.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,600.81 : 143,420.37 = 53,540.72 : x
  2. Step 2: Convert to fraction form
    95,600.81/143,420.37 = 53,540.72/x
  3. Step 3: Cross multiply
    95,600.81x = 143,420.37 × 53,540.72
  4. Step 4: Simplify right side
    95,600.81x = 7,678,829,872.47
  5. Step 5: Solve for x
    x = 7,678,829,872.47/95,600.81
  6. Step 6: Final answer
    x = 80,321.81

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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.