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Finding the Fourth Proportional to 57,841.20, 86,811.06 and 41,241.90

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Solution

The fourth proportional to 57,841.20, 86,811.06 and 41,241.90 is: 61,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,841.20 : 86,811.06 = 41,241.90 : x
  2. Step 2: Convert to fraction form
    57,841.20/86,811.06 = 41,241.90/x
  3. Step 3: Cross multiply
    57,841.20x = 86,811.06 × 41,241.90
  4. Step 4: Simplify right side
    57,841.20x = 3,580,253,055.41
  5. Step 5: Solve for x
    x = 3,580,253,055.41/57,841.20
  6. Step 6: Final answer
    x = 61,897.97

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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.