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Finding the Fourth Proportional to 483,812.40, 725,545.80 and 168,279.60

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Solution

The fourth proportional to 483,812.40, 725,545.80 and 168,279.60 is: 252,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,812.40 : 725,545.80 = 168,279.60 : x
  2. Step 2: Convert to fraction form
    483,812.40/725,545.80 = 168,279.60/x
  3. Step 3: Cross multiply
    483,812.40x = 725,545.80 × 168,279.60
  4. Step 4: Simplify right side
    483,812.40x = 122,094,557,005.68
  5. Step 5: Solve for x
    x = 122,094,557,005.68/483,812.40
  6. Step 6: Final answer
    x = 252,359.30

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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.