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Finding the Fourth Proportional to 343,837.97, 515,763.29 and 119,205.71

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Solution

The fourth proportional to 343,837.97, 515,763.29 and 119,205.71 is: 178,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,837.97 : 515,763.29 = 119,205.71 : x
  2. Step 2: Convert to fraction form
    343,837.97/515,763.29 = 119,205.71/x
  3. Step 3: Cross multiply
    343,837.97x = 515,763.29 × 119,205.71
  4. Step 4: Simplify right side
    343,837.97x = 61,481,926,895.58
  5. Step 5: Solve for x
    x = 61,481,926,895.58/343,837.97
  6. Step 6: Final answer
    x = 178,810.76

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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.