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Finding the Fourth Proportional to 325,260.20, 487,963.20 and 125,562.80

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Solution

The fourth proportional to 325,260.20, 487,963.20 and 125,562.80 is: 188,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,260.20 : 487,963.20 = 125,562.80 : x
  2. Step 2: Convert to fraction form
    325,260.20/487,963.20 = 125,562.80/x
  3. Step 3: Cross multiply
    325,260.20x = 487,963.20 × 125,562.80
  4. Step 4: Simplify right side
    325,260.20x = 61,270,025,688.96
  5. Step 5: Solve for x
    x = 61,270,025,688.96/325,260.20
  6. Step 6: Final answer
    x = 188,372.34

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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.