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Finding the Fourth Proportional to 91,879.85, 137,807.22 and 25,310.41

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Solution

The fourth proportional to 91,879.85, 137,807.22 and 25,310.41 is: 37,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879.85 : 137,807.22 = 25,310.41 : x
  2. Step 2: Convert to fraction form
    91,879.85/137,807.22 = 25,310.41/x
  3. Step 3: Cross multiply
    91,879.85x = 137,807.22 × 25,310.41
  4. Step 4: Simplify right side
    91,879.85x = 3,487,956,989.56
  5. Step 5: Solve for x
    x = 3,487,956,989.56/91,879.85
  6. Step 6: Final answer
    x = 37,962.15

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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.