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Finding the Fourth Proportional to 202,336.14, 303,506.10 and 89,985.90

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Solution

The fourth proportional to 202,336.14, 303,506.10 and 89,985.90 is: 134,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,336.14 : 303,506.10 = 89,985.90 : x
  2. Step 2: Convert to fraction form
    202,336.14/303,506.10 = 89,985.90/x
  3. Step 3: Cross multiply
    202,336.14x = 303,506.10 × 89,985.90
  4. Step 4: Simplify right side
    202,336.14x = 27,311,269,563.99
  5. Step 5: Solve for x
    x = 27,311,269,563.99/202,336.14
  6. Step 6: Final answer
    x = 134,979.69

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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.