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Finding the Fourth Proportional to 483,979.60, 726,185.40 and 168,662.80

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Solution

The fourth proportional to 483,979.60, 726,185.40 and 168,662.80 is: 253,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,979.60 : 726,185.40 = 168,662.80 : x
  2. Step 2: Convert to fraction form
    483,979.60/726,185.40 = 168,662.80/x
  3. Step 3: Cross multiply
    483,979.60x = 726,185.40 × 168,662.80
  4. Step 4: Simplify right side
    483,979.60x = 122,480,462,883.12
  5. Step 5: Solve for x
    x = 122,480,462,883.12/483,979.60
  6. Step 6: Final answer
    x = 253,069.47

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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.