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Finding the Fourth Proportional to 325,871.80, 488,839.12 and 101,171.90

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Solution

The fourth proportional to 325,871.80, 488,839.12 and 101,171.90 is: 151,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,871.80 : 488,839.12 = 101,171.90 : x
  2. Step 2: Convert to fraction form
    325,871.80/488,839.12 = 101,171.90/x
  3. Step 3: Cross multiply
    325,871.80x = 488,839.12 × 101,171.90
  4. Step 4: Simplify right side
    325,871.80x = 49,456,782,564.73
  5. Step 5: Solve for x
    x = 49,456,782,564.73/325,871.80
  6. Step 6: Final answer
    x = 151,767.60

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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.