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Finding the Fourth Proportional to 269,751.87, 404,861.09 and 103,656.51

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Solution

The fourth proportional to 269,751.87, 404,861.09 and 103,656.51 is: 155,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,751.87 : 404,861.09 = 103,656.51 : x
  2. Step 2: Convert to fraction form
    269,751.87/404,861.09 = 103,656.51/x
  3. Step 3: Cross multiply
    269,751.87x = 404,861.09 × 103,656.51
  4. Step 4: Simplify right side
    269,751.87x = 41,966,487,105.91
  5. Step 5: Solve for x
    x = 41,966,487,105.91/269,751.87
  6. Step 6: Final answer
    x = 155,574.41

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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.