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Finding the Fourth Proportional to 95,796.80, 143,623.56 and 66,129.92

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Solution

The fourth proportional to 95,796.80, 143,623.56 and 66,129.92 is: 99,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,796.80 : 143,623.56 = 66,129.92 : x
  2. Step 2: Convert to fraction form
    95,796.80/143,623.56 = 66,129.92/x
  3. Step 3: Cross multiply
    95,796.80x = 143,623.56 × 66,129.92
  4. Step 4: Simplify right side
    95,796.80x = 9,497,814,532.92
  5. Step 5: Solve for x
    x = 9,497,814,532.92/95,796.80
  6. Step 6: Final answer
    x = 99,145.43

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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.