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Finding the Fourth Proportional to 99,674.78, 149,541.03 and 29,555.78

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Solution

The fourth proportional to 99,674.78, 149,541.03 and 29,555.78 is: 44,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,674.78 : 149,541.03 = 29,555.78 : x
  2. Step 2: Convert to fraction form
    99,674.78/149,541.03 = 29,555.78/x
  3. Step 3: Cross multiply
    99,674.78x = 149,541.03 × 29,555.78
  4. Step 4: Simplify right side
    99,674.78x = 4,419,801,783.65
  5. Step 5: Solve for x
    x = 4,419,801,783.65/99,674.78
  6. Step 6: Final answer
    x = 44,342.23

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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.