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Finding the Fourth Proportional to 99,876.84, 149,815.83 and 33,316.77

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Solution

The fourth proportional to 99,876.84, 149,815.83 and 33,316.77 is: 49,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,876.84 : 149,815.83 = 33,316.77 : x
  2. Step 2: Convert to fraction form
    99,876.84/149,815.83 = 33,316.77/x
  3. Step 3: Cross multiply
    99,876.84x = 149,815.83 × 33,316.77
  4. Step 4: Simplify right side
    99,876.84x = 4,991,379,550.47
  5. Step 5: Solve for x
    x = 4,991,379,550.47/99,876.84
  6. Step 6: Final answer
    x = 49,975.35

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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.