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Finding the Fourth Proportional to 202,844.60, 304,266.90 and 136,489.40

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Solution

The fourth proportional to 202,844.60, 304,266.90 and 136,489.40 is: 204,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,844.60 : 304,266.90 = 136,489.40 : x
  2. Step 2: Convert to fraction form
    202,844.60/304,266.90 = 136,489.40/x
  3. Step 3: Cross multiply
    202,844.60x = 304,266.90 × 136,489.40
  4. Step 4: Simplify right side
    202,844.60x = 41,529,206,620.86
  5. Step 5: Solve for x
    x = 41,529,206,620.86/202,844.60
  6. Step 6: Final answer
    x = 204,734.10

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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.