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Finding the Fourth Proportional to 304,921.68, 457,299.90 and 127,391.56

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Solution

The fourth proportional to 304,921.68, 457,299.90 and 127,391.56 is: 191,052.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,921.68 : 457,299.90 = 127,391.56 : x
  2. Step 2: Convert to fraction form
    304,921.68/457,299.90 = 127,391.56/x
  3. Step 3: Cross multiply
    304,921.68x = 457,299.90 × 127,391.56
  4. Step 4: Simplify right side
    304,921.68x = 58,256,147,648.84
  5. Step 5: Solve for x
    x = 58,256,147,648.84/304,921.68
  6. Step 6: Final answer
    x = 191,052.82

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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.