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Finding the Fourth Proportional to 202,186.40, 303,133.80 and 132,105.20

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Solution

The fourth proportional to 202,186.40, 303,133.80 and 132,105.20 is: 198,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,186.40 : 303,133.80 = 132,105.20 : x
  2. Step 2: Convert to fraction form
    202,186.40/303,133.80 = 132,105.20/x
  3. Step 3: Cross multiply
    202,186.40x = 303,133.80 × 132,105.20
  4. Step 4: Simplify right side
    202,186.40x = 40,045,551,275.76
  5. Step 5: Solve for x
    x = 40,045,551,275.76/202,186.40
  6. Step 6: Final answer
    x = 198,062.54

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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.