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Finding the Fourth Proportional to 265,761.71, 398,198.77 and 186,734.46

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Solution

The fourth proportional to 265,761.71, 398,198.77 and 186,734.46 is: 279,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,761.71 : 398,198.77 = 186,734.46 : x
  2. Step 2: Convert to fraction form
    265,761.71/398,198.77 = 186,734.46/x
  3. Step 3: Cross multiply
    265,761.71x = 398,198.77 × 186,734.46
  4. Step 4: Simplify right side
    265,761.71x = 74,357,433,315.02
  5. Step 5: Solve for x
    x = 74,357,433,315.02/265,761.71
  6. Step 6: Final answer
    x = 279,789.87

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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.