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Finding the Fourth Proportional to 483,865.40, 725,625.30 and 168,332.60

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Solution

The fourth proportional to 483,865.40, 725,625.30 and 168,332.60 is: 252,438.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,865.40 : 725,625.30 = 168,332.60 : x
  2. Step 2: Convert to fraction form
    483,865.40/725,625.30 = 168,332.60/x
  3. Step 3: Cross multiply
    483,865.40x = 725,625.30 × 168,332.60
  4. Step 4: Simplify right side
    483,865.40x = 122,146,393,374.78
  5. Step 5: Solve for x
    x = 122,146,393,374.78/483,865.40
  6. Step 6: Final answer
    x = 252,438.78

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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.