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Finding the Fourth Proportional to 265,502.44, 398,100.30 and 87,961.60

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Solution

The fourth proportional to 265,502.44, 398,100.30 and 87,961.60 is: 131,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,502.44 : 398,100.30 = 87,961.60 : x
  2. Step 2: Convert to fraction form
    265,502.44/398,100.30 = 87,961.60/x
  3. Step 3: Cross multiply
    265,502.44x = 398,100.30 × 87,961.60
  4. Step 4: Simplify right side
    265,502.44x = 35,017,539,348.48
  5. Step 5: Solve for x
    x = 35,017,539,348.48/265,502.44
  6. Step 6: Final answer
    x = 131,891.59

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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.