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Finding the Fourth Proportional to 272,759.91, 376,381.69 and 151,912.42

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Solution

The fourth proportional to 272,759.91, 376,381.69 and 151,912.42 is: 209,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,759.91 : 376,381.69 = 151,912.42 : x
  2. Step 2: Convert to fraction form
    272,759.91/376,381.69 = 151,912.42/x
  3. Step 3: Cross multiply
    272,759.91x = 376,381.69 × 151,912.42
  4. Step 4: Simplify right side
    272,759.91x = 57,177,053,371.59
  5. Step 5: Solve for x
    x = 57,177,053,371.59/272,759.91
  6. Step 6: Final answer
    x = 209,624.11

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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.