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Finding the Fourth Proportional to 61,400.58, 92,100.87 and 40,619.22

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Solution

The fourth proportional to 61,400.58, 92,100.87 and 40,619.22 is: 60,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,400.58 : 92,100.87 = 40,619.22 : x
  2. Step 2: Convert to fraction form
    61,400.58/92,100.87 = 40,619.22/x
  3. Step 3: Cross multiply
    61,400.58x = 92,100.87 × 40,619.22
  4. Step 4: Simplify right side
    61,400.58x = 3,741,065,500.72
  5. Step 5: Solve for x
    x = 3,741,065,500.72/61,400.58
  6. Step 6: Final answer
    x = 60,928.83

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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.