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Finding the Fourth Proportional to 336,021.70, 504,243.51 and 136,342.90

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Solution

The fourth proportional to 336,021.70, 504,243.51 and 136,342.90 is: 204,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,021.70 : 504,243.51 = 136,342.90 : x
  2. Step 2: Convert to fraction form
    336,021.70/504,243.51 = 136,342.90/x
  3. Step 3: Cross multiply
    336,021.70x = 504,243.51 × 136,342.90
  4. Step 4: Simplify right side
    336,021.70x = 68,750,022,459.58
  5. Step 5: Solve for x
    x = 68,750,022,459.58/336,021.70
  6. Step 6: Final answer
    x = 204,599.95

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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.