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Finding the Fourth Proportional to 416,662.88, 624,930.26 and 132,316.52

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Solution

The fourth proportional to 416,662.88, 624,930.26 and 132,316.52 is: 198,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,662.88 : 624,930.26 = 132,316.52 : x
  2. Step 2: Convert to fraction form
    416,662.88/624,930.26 = 132,316.52/x
  3. Step 3: Cross multiply
    416,662.88x = 624,930.26 × 132,316.52
  4. Step 4: Simplify right side
    416,662.88x = 82,688,593,459.66
  5. Step 5: Solve for x
    x = 82,688,593,459.66/416,662.88
  6. Step 6: Final answer
    x = 198,454.43

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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.