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Finding the Fourth Proportional to 64,772.54, 96,979.41 and 33,114.45

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Solution

The fourth proportional to 64,772.54, 96,979.41 and 33,114.45 is: 49,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,772.54 : 96,979.41 = 33,114.45 : x
  2. Step 2: Convert to fraction form
    64,772.54/96,979.41 = 33,114.45/x
  3. Step 3: Cross multiply
    64,772.54x = 96,979.41 × 33,114.45
  4. Step 4: Simplify right side
    64,772.54x = 3,211,419,823.47
  5. Step 5: Solve for x
    x = 3,211,419,823.47/64,772.54
  6. Step 6: Final answer
    x = 49,579.96

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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.