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Finding the Fourth Proportional to 89,195.49, 133,836.87 and 39,269.31

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Solution

The fourth proportional to 89,195.49, 133,836.87 and 39,269.31 is: 58,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,195.49 : 133,836.87 = 39,269.31 : x
  2. Step 2: Convert to fraction form
    89,195.49/133,836.87 = 39,269.31/x
  3. Step 3: Cross multiply
    89,195.49x = 133,836.87 × 39,269.31
  4. Step 4: Simplify right side
    89,195.49x = 5,255,681,537.46
  5. Step 5: Solve for x
    x = 5,255,681,537.46/89,195.49
  6. Step 6: Final answer
    x = 58,923.18

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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.