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Finding the Fourth Proportional to 325,546.20, 488,392.20 and 125,848.80

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Solution

The fourth proportional to 325,546.20, 488,392.20 and 125,848.80 is: 188,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,546.20 : 488,392.20 = 125,848.80 : x
  2. Step 2: Convert to fraction form
    325,546.20/488,392.20 = 125,848.80/x
  3. Step 3: Cross multiply
    325,546.20x = 488,392.20 × 125,848.80
  4. Step 4: Simplify right side
    325,546.20x = 61,463,572,299.36
  5. Step 5: Solve for x
    x = 61,463,572,299.36/325,546.20
  6. Step 6: Final answer
    x = 188,801.38

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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.