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Finding the Fourth Proportional to 436,837.75, 655,256.08 and 137,344.48

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Solution

The fourth proportional to 436,837.75, 655,256.08 and 137,344.48 is: 206,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,837.75 : 655,256.08 = 137,344.48 : x
  2. Step 2: Convert to fraction form
    436,837.75/655,256.08 = 137,344.48/x
  3. Step 3: Cross multiply
    436,837.75x = 655,256.08 × 137,344.48
  4. Step 4: Simplify right side
    436,837.75x = 89,995,805,574.44
  5. Step 5: Solve for x
    x = 89,995,805,574.44/436,837.75
  6. Step 6: Final answer
    x = 206,016.55

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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.