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Finding the Fourth Proportional to 325,188.83, 487,836.11 and 100,496.86

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Solution

The fourth proportional to 325,188.83, 487,836.11 and 100,496.86 is: 150,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,188.83 : 487,836.11 = 100,496.86 : x
  2. Step 2: Convert to fraction form
    325,188.83/487,836.11 = 100,496.86/x
  3. Step 3: Cross multiply
    325,188.83x = 487,836.11 × 100,496.86
  4. Step 4: Simplify right side
    325,188.83x = 49,025,996,281.27
  5. Step 5: Solve for x
    x = 49,025,996,281.27/325,188.83
  6. Step 6: Final answer
    x = 150,761.62

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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.