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Finding the Fourth Proportional to 269,416.94, 404,374.68 and 136,390.64

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Solution

The fourth proportional to 269,416.94, 404,374.68 and 136,390.64 is: 204,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,416.94 : 404,374.68 = 136,390.64 : x
  2. Step 2: Convert to fraction form
    269,416.94/404,374.68 = 136,390.64/x
  3. Step 3: Cross multiply
    269,416.94x = 404,374.68 × 136,390.64
  4. Step 4: Simplify right side
    269,416.94x = 55,152,919,383.12
  5. Step 5: Solve for x
    x = 55,152,919,383.12/269,416.94
  6. Step 6: Final answer
    x = 204,712.15

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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.