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Finding the Fourth Proportional to 483,886.20, 725,894.10 and 168,439.80

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Solution

The fourth proportional to 483,886.20, 725,894.10 and 168,439.80 is: 252,682.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,886.20 : 725,894.10 = 168,439.80 : x
  2. Step 2: Convert to fraction form
    483,886.20/725,894.10 = 168,439.80/x
  3. Step 3: Cross multiply
    483,886.20x = 725,894.10 × 168,439.80
  4. Step 4: Simplify right side
    483,886.20x = 122,269,457,025.18
  5. Step 5: Solve for x
    x = 122,269,457,025.18/483,886.20
  6. Step 6: Final answer
    x = 252,682.26

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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.