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Finding the Fourth Proportional to 95,424.80, 143,137.20 and 82,302.80

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Solution

The fourth proportional to 95,424.80, 143,137.20 and 82,302.80 is: 123,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,424.80 : 143,137.20 = 82,302.80 : x
  2. Step 2: Convert to fraction form
    95,424.80/143,137.20 = 82,302.80/x
  3. Step 3: Cross multiply
    95,424.80x = 143,137.20 × 82,302.80
  4. Step 4: Simplify right side
    95,424.80x = 11,780,592,344.16
  5. Step 5: Solve for x
    x = 11,780,592,344.16/95,424.80
  6. Step 6: Final answer
    x = 123,454.20

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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.