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Finding the Fourth Proportional to 91,856.90, 137,743.78 and 32,694.14

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Solution

The fourth proportional to 91,856.90, 137,743.78 and 32,694.14 is: 49,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856.90 : 137,743.78 = 32,694.14 : x
  2. Step 2: Convert to fraction form
    91,856.90/137,743.78 = 32,694.14/x
  3. Step 3: Cross multiply
    91,856.90x = 137,743.78 × 32,694.14
  4. Step 4: Simplify right side
    91,856.90x = 4,503,414,427.45
  5. Step 5: Solve for x
    x = 4,503,414,427.45/91,856.90
  6. Step 6: Final answer
    x = 49,026.41

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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.