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Finding the Fourth Proportional to 331,955.16, 458,096.02 and 188,715.20

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Solution

The fourth proportional to 331,955.16, 458,096.02 and 188,715.20 is: 260,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,955.16 : 458,096.02 = 188,715.20 : x
  2. Step 2: Convert to fraction form
    331,955.16/458,096.02 = 188,715.20/x
  3. Step 3: Cross multiply
    331,955.16x = 458,096.02 × 188,715.20
  4. Step 4: Simplify right side
    331,955.16x = 86,449,682,033.50
  5. Step 5: Solve for x
    x = 86,449,682,033.50/331,955.16
  6. Step 6: Final answer
    x = 260,425.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.