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Finding the Fourth Proportional to 484,147.84, 726,241.28 and 168,636.64

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Solution

The fourth proportional to 484,147.84, 726,241.28 and 168,636.64 is: 252,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,147.84 : 726,241.28 = 168,636.64 : x
  2. Step 2: Convert to fraction form
    484,147.84/726,241.28 = 168,636.64/x
  3. Step 3: Cross multiply
    484,147.84x = 726,241.28 × 168,636.64
  4. Step 4: Simplify right side
    484,147.84x = 122,470,889,288.50
  5. Step 5: Solve for x
    x = 122,470,889,288.50/484,147.84
  6. Step 6: Final answer
    x = 252,961.76

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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.