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Finding the Fourth Proportional to 99,380.00, 148,979.48 and 63,850.97

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Solution

The fourth proportional to 99,380.00, 148,979.48 and 63,850.97 is: 95,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,380.00 : 148,979.48 = 63,850.97 : x
  2. Step 2: Convert to fraction form
    99,380.00/148,979.48 = 63,850.97/x
  3. Step 3: Cross multiply
    99,380.00x = 148,979.48 × 63,850.97
  4. Step 4: Simplify right side
    99,380.00x = 9,512,483,243.94
  5. Step 5: Solve for x
    x = 9,512,483,243.94/99,380.00
  6. Step 6: Final answer
    x = 95,718.29

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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.