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Finding the Fourth Proportional to 56,861.66, 85,223.30 and 40,226.50

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Solution

The fourth proportional to 56,861.66, 85,223.30 and 40,226.50 is: 60,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.66 : 85,223.30 = 40,226.50 : x
  2. Step 2: Convert to fraction form
    56,861.66/85,223.30 = 40,226.50/x
  3. Step 3: Cross multiply
    56,861.66x = 85,223.30 × 40,226.50
  4. Step 4: Simplify right side
    56,861.66x = 3,428,234,450.20
  5. Step 5: Solve for x
    x = 3,428,234,450.20/56,861.66
  6. Step 6: Final answer
    x = 60,290.79

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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.