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Finding the Fourth Proportional to 202,494.30, 303,741.45 and 136,139.10

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Solution

The fourth proportional to 202,494.30, 303,741.45 and 136,139.10 is: 204,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,494.30 : 303,741.45 = 136,139.10 : x
  2. Step 2: Convert to fraction form
    202,494.30/303,741.45 = 136,139.10/x
  3. Step 3: Cross multiply
    202,494.30x = 303,741.45 × 136,139.10
  4. Step 4: Simplify right side
    202,494.30x = 41,351,087,635.70
  5. Step 5: Solve for x
    x = 41,351,087,635.70/202,494.30
  6. Step 6: Final answer
    x = 204,208.65

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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.