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Finding the Fourth Proportional to 99,973.96, 149,905.84 and 33,379

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Solution

The fourth proportional to 99,973.96, 149,905.84 and 33,379 is: 50,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,973.96 : 149,905.84 = 33,379 : x
  2. Step 2: Convert to fraction form
    99,973.96/149,905.84 = 33,379/x
  3. Step 3: Cross multiply
    99,973.96x = 149,905.84 × 33,379
  4. Step 4: Simplify right side
    99,973.96x = 5,003,707,033.36
  5. Step 5: Solve for x
    x = 5,003,707,033.36/99,973.96
  6. Step 6: Final answer
    x = 50,050.10

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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.