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Finding the Fourth Proportional to 269,520.70, 403,843.65 and 169,501.90

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Solution

The fourth proportional to 269,520.70, 403,843.65 and 169,501.90 is: 253,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,520.70 : 403,843.65 = 169,501.90 : x
  2. Step 2: Convert to fraction form
    269,520.70/403,843.65 = 169,501.90/x
  3. Step 3: Cross multiply
    269,520.70x = 403,843.65 × 169,501.90
  4. Step 4: Simplify right side
    269,520.70x = 68,452,265,977.94
  5. Step 5: Solve for x
    x = 68,452,265,977.94/269,520.70
  6. Step 6: Final answer
    x = 253,977.77

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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.