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Finding the Fourth Proportional to 95,310.40, 142,868.40 and 55,847.20

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Solution

The fourth proportional to 95,310.40, 142,868.40 and 55,847.20 is: 83,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,310.40 : 142,868.40 = 55,847.20 : x
  2. Step 2: Convert to fraction form
    95,310.40/142,868.40 = 55,847.20/x
  3. Step 3: Cross multiply
    95,310.40x = 142,868.40 × 55,847.20
  4. Step 4: Simplify right side
    95,310.40x = 7,978,800,108.48
  5. Step 5: Solve for x
    x = 7,978,800,108.48/95,310.40
  6. Step 6: Final answer
    x = 83,713.85

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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.