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Finding the Fourth Proportional to 104,991.90, 144,901.12 and 59,676.69

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Solution

The fourth proportional to 104,991.90, 144,901.12 and 59,676.69 is: 82,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.90 : 144,901.12 = 59,676.69 : x
  2. Step 2: Convert to fraction form
    104,991.90/144,901.12 = 59,676.69/x
  3. Step 3: Cross multiply
    104,991.90x = 144,901.12 × 59,676.69
  4. Step 4: Simplify right side
    104,991.90x = 8,647,219,218.89
  5. Step 5: Solve for x
    x = 8,647,219,218.89/104,991.90
  6. Step 6: Final answer
    x = 82,360.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.