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Finding the Fourth Proportional to 325,573.13, 488,378.13 and 100,965.50

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Solution

The fourth proportional to 325,573.13, 488,378.13 and 100,965.50 is: 151,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,573.13 : 488,378.13 = 100,965.50 : x
  2. Step 2: Convert to fraction form
    325,573.13/488,378.13 = 100,965.50/x
  3. Step 3: Cross multiply
    325,573.13x = 488,378.13 × 100,965.50
  4. Step 4: Simplify right side
    325,573.13x = 49,309,339,390.21
  5. Step 5: Solve for x
    x = 49,309,339,390.21/325,573.13
  6. Step 6: Final answer
    x = 151,453.96

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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.