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Finding the Fourth Proportional to 322,617.20, 483,925.80 and 125,625.20

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Solution

The fourth proportional to 322,617.20, 483,925.80 and 125,625.20 is: 188,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,617.20 : 483,925.80 = 125,625.20 : x
  2. Step 2: Convert to fraction form
    322,617.20/483,925.80 = 125,625.20/x
  3. Step 3: Cross multiply
    322,617.20x = 483,925.80 × 125,625.20
  4. Step 4: Simplify right side
    322,617.20x = 60,793,275,410.16
  5. Step 5: Solve for x
    x = 60,793,275,410.16/322,617.20
  6. Step 6: Final answer
    x = 188,437.80

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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.