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Finding the Fourth Proportional to 202,785.39, 279,854.46 and 116,757.45

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Solution

The fourth proportional to 202,785.39, 279,854.46 and 116,757.45 is: 161,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,785.39 : 279,854.46 = 116,757.45 : x
  2. Step 2: Convert to fraction form
    202,785.39/279,854.46 = 116,757.45/x
  3. Step 3: Cross multiply
    202,785.39x = 279,854.46 × 116,757.45
  4. Step 4: Simplify right side
    202,785.39x = 32,675,093,120.73
  5. Step 5: Solve for x
    x = 32,675,093,120.73/202,785.39
  6. Step 6: Final answer
    x = 161,131.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.