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Finding the Fourth Proportional to 202,321.40, 303,810.15 and 136,055.30

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Solution

The fourth proportional to 202,321.40, 303,810.15 and 136,055.30 is: 204,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,321.40 : 303,810.15 = 136,055.30 : x
  2. Step 2: Convert to fraction form
    202,321.40/303,810.15 = 136,055.30/x
  3. Step 3: Cross multiply
    202,321.40x = 303,810.15 × 136,055.30
  4. Step 4: Simplify right side
    202,321.40x = 41,334,981,101.30
  5. Step 5: Solve for x
    x = 41,334,981,101.30/202,321.40
  6. Step 6: Final answer
    x = 204,303.55

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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.