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Finding the Fourth Proportional to 59,978.76, 89,910.12 and 40,262.52

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Solution

The fourth proportional to 59,978.76, 89,910.12 and 40,262.52 is: 60,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,978.76 : 89,910.12 = 40,262.52 : x
  2. Step 2: Convert to fraction form
    59,978.76/89,910.12 = 40,262.52/x
  3. Step 3: Cross multiply
    59,978.76x = 89,910.12 × 40,262.52
  4. Step 4: Simplify right side
    59,978.76x = 3,620,008,004.70
  5. Step 5: Solve for x
    x = 3,620,008,004.70/59,978.76
  6. Step 6: Final answer
    x = 60,354.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.