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Finding the Fourth Proportional to 91,694.88, 137,544.93 and 41,749.20

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Solution

The fourth proportional to 91,694.88, 137,544.93 and 41,749.20 is: 62,624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,694.88 : 137,544.93 = 41,749.20 : x
  2. Step 2: Convert to fraction form
    91,694.88/137,544.93 = 41,749.20/x
  3. Step 3: Cross multiply
    91,694.88x = 137,544.93 × 41,749.20
  4. Step 4: Simplify right side
    91,694.88x = 5,742,390,791.56
  5. Step 5: Solve for x
    x = 5,742,390,791.56/91,694.88
  6. Step 6: Final answer
    x = 62,624.99

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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.