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Finding the Fourth Proportional to 202,318.40, 303,805.65 and 136,052.30

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Solution

The fourth proportional to 202,318.40, 303,805.65 and 136,052.30 is: 204,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,318.40 : 303,805.65 = 136,052.30 : x
  2. Step 2: Convert to fraction form
    202,318.40/303,805.65 = 136,052.30/x
  3. Step 3: Cross multiply
    202,318.40x = 303,805.65 × 136,052.30
  4. Step 4: Simplify right side
    202,318.40x = 41,333,457,435.50
  5. Step 5: Solve for x
    x = 41,333,457,435.50/202,318.40
  6. Step 6: Final answer
    x = 204,299.05

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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.