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Finding the Fourth Proportional to 68,525.20, 102,893.40 and 37,421.20

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Solution

The fourth proportional to 68,525.20, 102,893.40 and 37,421.20 is: 56,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,525.20 : 102,893.40 = 37,421.20 : x
  2. Step 2: Convert to fraction form
    68,525.20/102,893.40 = 37,421.20/x
  3. Step 3: Cross multiply
    68,525.20x = 102,893.40 × 37,421.20
  4. Step 4: Simplify right side
    68,525.20x = 3,850,394,500.08
  5. Step 5: Solve for x
    x = 3,850,394,500.08/68,525.20
  6. Step 6: Final answer
    x = 56,189.47

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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.