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Finding the Fourth Proportional to 360,938.31, 541,405.99 and 91,067.08

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Solution

The fourth proportional to 360,938.31, 541,405.99 and 91,067.08 is: 136,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,938.31 : 541,405.99 = 91,067.08 : x
  2. Step 2: Convert to fraction form
    360,938.31/541,405.99 = 91,067.08/x
  3. Step 3: Cross multiply
    360,938.31x = 541,405.99 × 91,067.08
  4. Step 4: Simplify right side
    360,938.31x = 49,304,259,441.44
  5. Step 5: Solve for x
    x = 49,304,259,441.44/360,938.31
  6. Step 6: Final answer
    x = 136,600.24

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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.