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Finding the Fourth Proportional to 104,990.65, 144,899.39 and 59,675.44

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Solution

The fourth proportional to 104,990.65, 144,899.39 and 59,675.44 is: 82,359.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,990.65 : 144,899.39 = 59,675.44 : x
  2. Step 2: Convert to fraction form
    104,990.65/144,899.39 = 59,675.44/x
  3. Step 3: Cross multiply
    104,990.65x = 144,899.39 × 59,675.44
  4. Step 4: Simplify right side
    104,990.65x = 8,646,934,640.92
  5. Step 5: Solve for x
    x = 8,646,934,640.92/104,990.65
  6. Step 6: Final answer
    x = 82,359.09

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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.