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Finding the Fourth Proportional to 45,711.60, 68,401.16 and 37,739.99

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Solution

The fourth proportional to 45,711.60, 68,401.16 and 37,739.99 is: 56,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,711.60 : 68,401.16 = 37,739.99 : x
  2. Step 2: Convert to fraction form
    45,711.60/68,401.16 = 37,739.99/x
  3. Step 3: Cross multiply
    45,711.60x = 68,401.16 × 37,739.99
  4. Step 4: Simplify right side
    45,711.60x = 2,581,458,563.68
  5. Step 5: Solve for x
    x = 2,581,458,563.68/45,711.60
  6. Step 6: Final answer
    x = 56,472.72

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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.