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Finding the Fourth Proportional to 96,647.62, 133,380.36 and 54,208.88

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Solution

The fourth proportional to 96,647.62, 133,380.36 and 54,208.88 is: 74,811.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,647.62 : 133,380.36 = 54,208.88 : x
  2. Step 2: Convert to fraction form
    96,647.62/133,380.36 = 54,208.88/x
  3. Step 3: Cross multiply
    96,647.62x = 133,380.36 × 54,208.88
  4. Step 4: Simplify right side
    96,647.62x = 7,230,399,929.60
  5. Step 5: Solve for x
    x = 7,230,399,929.60/96,647.62
  6. Step 6: Final answer
    x = 74,811.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.