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Finding the Fourth Proportional to 91,672.56, 137,508.96 and 25,113.27

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Solution

The fourth proportional to 91,672.56, 137,508.96 and 25,113.27 is: 37,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,672.56 : 137,508.96 = 25,113.27 : x
  2. Step 2: Convert to fraction form
    91,672.56/137,508.96 = 25,113.27/x
  3. Step 3: Cross multiply
    91,672.56x = 137,508.96 × 25,113.27
  4. Step 4: Simplify right side
    91,672.56x = 3,453,299,639.90
  5. Step 5: Solve for x
    x = 3,453,299,639.90/91,672.56
  6. Step 6: Final answer
    x = 37,669.94

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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.