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Finding the Fourth Proportional to 63,142.50, 87,137.87 and 34,847.58

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Solution

The fourth proportional to 63,142.50, 87,137.87 and 34,847.58 is: 48,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,142.50 : 87,137.87 = 34,847.58 : x
  2. Step 2: Convert to fraction form
    63,142.50/87,137.87 = 34,847.58/x
  3. Step 3: Cross multiply
    63,142.50x = 87,137.87 × 34,847.58
  4. Step 4: Simplify right side
    63,142.50x = 3,036,543,721.62
  5. Step 5: Solve for x
    x = 3,036,543,721.62/63,142.50
  6. Step 6: Final answer
    x = 48,090.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.