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Finding the Fourth Proportional to 239,717.70, 330,709.50 and 168,144.48

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Solution

The fourth proportional to 239,717.70, 330,709.50 and 168,144.48 is: 231,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,717.70 : 330,709.50 = 168,144.48 : x
  2. Step 2: Convert to fraction form
    239,717.70/330,709.50 = 168,144.48/x
  3. Step 3: Cross multiply
    239,717.70x = 330,709.50 × 168,144.48
  4. Step 4: Simplify right side
    239,717.70x = 55,606,976,908.56
  5. Step 5: Solve for x
    x = 55,606,976,908.56/239,717.70
  6. Step 6: Final answer
    x = 231,968.59

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1.5x scale

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.