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Finding the Fourth Proportional to 95,425.20, 143,137.80 and 53,434.80

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Solution

The fourth proportional to 95,425.20, 143,137.80 and 53,434.80 is: 80,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,425.20 : 143,137.80 = 53,434.80 : x
  2. Step 2: Convert to fraction form
    95,425.20/143,137.80 = 53,434.80/x
  3. Step 3: Cross multiply
    95,425.20x = 143,137.80 × 53,434.80
  4. Step 4: Simplify right side
    95,425.20x = 7,648,539,715.44
  5. Step 5: Solve for x
    x = 7,648,539,715.44/95,425.20
  6. Step 6: Final answer
    x = 80,152.20

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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.