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Finding the Fourth Proportional to 95,676.62, 143,443.43 and 66,009.80

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Solution

The fourth proportional to 95,676.62, 143,443.43 and 66,009.80 is: 98,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,676.62 : 143,443.43 = 66,009.80 : x
  2. Step 2: Convert to fraction form
    95,676.62/143,443.43 = 66,009.80/x
  3. Step 3: Cross multiply
    95,676.62x = 143,443.43 × 66,009.80
  4. Step 4: Simplify right side
    95,676.62x = 9,468,672,125.61
  5. Step 5: Solve for x
    x = 9,468,672,125.61/95,676.62
  6. Step 6: Final answer
    x = 98,965.37

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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.