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Finding the Fourth Proportional to 169,672.68, 233,990.82 and 109,136.52

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Solution

The fourth proportional to 169,672.68, 233,990.82 and 109,136.52 is: 150,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,672.68 : 233,990.82 = 109,136.52 : x
  2. Step 2: Convert to fraction form
    169,672.68/233,990.82 = 109,136.52/x
  3. Step 3: Cross multiply
    169,672.68x = 233,990.82 × 109,136.52
  4. Step 4: Simplify right side
    169,672.68x = 25,536,943,806.75
  5. Step 5: Solve for x
    x = 25,536,943,806.75/169,672.68
  6. Step 6: Final answer
    x = 150,507.10

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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.