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Finding the Fourth Proportional to 99,699.39, 149,493.02 and 33,103.87

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Solution

The fourth proportional to 99,699.39, 149,493.02 and 33,103.87 is: 49,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699.39 : 149,493.02 = 33,103.87 : x
  2. Step 2: Convert to fraction form
    99,699.39/149,493.02 = 33,103.87/x
  3. Step 3: Cross multiply
    99,699.39x = 149,493.02 × 33,103.87
  4. Step 4: Simplify right side
    99,699.39x = 4,948,796,960.74
  5. Step 5: Solve for x
    x = 4,948,796,960.74/99,699.39
  6. Step 6: Final answer
    x = 49,637.18

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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.