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Finding the Fourth Proportional to 91,499.68, 137,245.48 and 24,939.80

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Solution

The fourth proportional to 91,499.68, 137,245.48 and 24,939.80 is: 37,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,499.68 : 137,245.48 = 24,939.80 : x
  2. Step 2: Convert to fraction form
    91,499.68/137,245.48 = 24,939.80/x
  3. Step 3: Cross multiply
    91,499.68x = 137,245.48 × 24,939.80
  4. Step 4: Simplify right side
    91,499.68x = 3,422,875,360.20
  5. Step 5: Solve for x
    x = 3,422,875,360.20/91,499.68
  6. Step 6: Final answer
    x = 37,408.60

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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.