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Finding the Fourth Proportional to 202,300.90, 303,779.40 and 136,034.80

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Solution

The fourth proportional to 202,300.90, 303,779.40 and 136,034.80 is: 204,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,300.90 : 303,779.40 = 136,034.80 : x
  2. Step 2: Convert to fraction form
    202,300.90/303,779.40 = 136,034.80/x
  3. Step 3: Cross multiply
    202,300.90x = 303,779.40 × 136,034.80
  4. Step 4: Simplify right side
    202,300.90x = 41,324,569,923.12
  5. Step 5: Solve for x
    x = 41,324,569,923.12/202,300.90
  6. Step 6: Final answer
    x = 204,272.79

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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.