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Finding the Fourth Proportional to 63,893.40, 95,840.10 and 57,672.60

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Solution

The fourth proportional to 63,893.40, 95,840.10 and 57,672.60 is: 86,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,893.40 : 95,840.10 = 57,672.60 : x
  2. Step 2: Convert to fraction form
    63,893.40/95,840.10 = 57,672.60/x
  3. Step 3: Cross multiply
    63,893.40x = 95,840.10 × 57,672.60
  4. Step 4: Simplify right side
    63,893.40x = 5,527,347,751.26
  5. Step 5: Solve for x
    x = 5,527,347,751.26/63,893.40
  6. Step 6: Final answer
    x = 86,508.90

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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.