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Finding the Fourth Proportional to 265,827.22, 398,520.20 and 105,804.43

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Solution

The fourth proportional to 265,827.22, 398,520.20 and 105,804.43 is: 158,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,827.22 : 398,520.20 = 105,804.43 : x
  2. Step 2: Convert to fraction form
    265,827.22/398,520.20 = 105,804.43/x
  3. Step 3: Cross multiply
    265,827.22x = 398,520.20 × 105,804.43
  4. Step 4: Simplify right side
    265,827.22x = 42,165,201,872.70
  5. Step 5: Solve for x
    x = 42,165,201,872.70/265,827.22
  6. Step 6: Final answer
    x = 158,618.83

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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.