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Finding the Fourth Proportional to 250,636.11, 375,947.91 and 73,144.65

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Solution

The fourth proportional to 250,636.11, 375,947.91 and 73,144.65 is: 109,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.11 : 375,947.91 = 73,144.65 : x
  2. Step 2: Convert to fraction form
    250,636.11/375,947.91 = 73,144.65/x
  3. Step 3: Cross multiply
    250,636.11x = 375,947.91 × 73,144.65
  4. Step 4: Simplify right side
    250,636.11x = 27,498,579,235.05
  5. Step 5: Solve for x
    x = 27,498,579,235.05/250,636.11
  6. Step 6: Final answer
    x = 109,715.16

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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.