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Finding the Fourth Proportional to 341,049.56, 511,573.62 and 91,731.80

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Solution

The fourth proportional to 341,049.56, 511,573.62 and 91,731.80 is: 137,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,049.56 : 511,573.62 = 91,731.80 : x
  2. Step 2: Convert to fraction form
    341,049.56/511,573.62 = 91,731.80/x
  3. Step 3: Cross multiply
    341,049.56x = 511,573.62 × 91,731.80
  4. Step 4: Simplify right side
    341,049.56x = 46,927,568,995.12
  5. Step 5: Solve for x
    x = 46,927,568,995.12/341,049.56
  6. Step 6: Final answer
    x = 137,597.51

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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.