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Finding the Fourth Proportional to 484,121.40, 726,009.30 and 168,588.60

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Solution

The fourth proportional to 484,121.40, 726,009.30 and 168,588.60 is: 252,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,121.40 : 726,009.30 = 168,588.60 : x
  2. Step 2: Convert to fraction form
    484,121.40/726,009.30 = 168,588.60/x
  3. Step 3: Cross multiply
    484,121.40x = 726,009.30 × 168,588.60
  4. Step 4: Simplify right side
    484,121.40x = 122,396,891,473.98
  5. Step 5: Solve for x
    x = 122,396,891,473.98/484,121.40
  6. Step 6: Final answer
    x = 252,822.72

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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.