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Finding the Fourth Proportional to 269,279.70, 403,918.32 and 69,583.11

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Solution

The fourth proportional to 269,279.70, 403,918.32 and 69,583.11 is: 104,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,279.70 : 403,918.32 = 69,583.11 : x
  2. Step 2: Convert to fraction form
    269,279.70/403,918.32 = 69,583.11/x
  3. Step 3: Cross multiply
    269,279.70x = 403,918.32 × 69,583.11
  4. Step 4: Simplify right side
    269,279.70x = 28,105,892,891.58
  5. Step 5: Solve for x
    x = 28,105,892,891.58/269,279.70
  6. Step 6: Final answer
    x = 104,374.35

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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.