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Finding the Fourth Proportional to 61,782.92, 92,674.88 and 40,453.62

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Solution

The fourth proportional to 61,782.92, 92,674.88 and 40,453.62 is: 60,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782.92 : 92,674.88 = 40,453.62 : x
  2. Step 2: Convert to fraction form
    61,782.92/92,674.88 = 40,453.62/x
  3. Step 3: Cross multiply
    61,782.92x = 92,674.88 × 40,453.62
  4. Step 4: Simplify right side
    61,782.92x = 3,749,034,379.07
  5. Step 5: Solve for x
    x = 3,749,034,379.07/61,782.92
  6. Step 6: Final answer
    x = 60,680.76

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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.