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Finding the Fourth Proportional to 73,219.25, 109,703.49 and 39,962.65

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Solution

The fourth proportional to 73,219.25, 109,703.49 and 39,962.65 is: 59,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,219.25 : 109,703.49 = 39,962.65 : x
  2. Step 2: Convert to fraction form
    73,219.25/109,703.49 = 39,962.65/x
  3. Step 3: Cross multiply
    73,219.25x = 109,703.49 × 39,962.65
  4. Step 4: Simplify right side
    73,219.25x = 4,384,042,174.65
  5. Step 5: Solve for x
    x = 4,384,042,174.65/73,219.25
  6. Step 6: Final answer
    x = 59,875.54

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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.