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Finding the Fourth Proportional to 265,755.96, 398,635.38 and 66,076.35

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Solution

The fourth proportional to 265,755.96, 398,635.38 and 66,076.35 is: 99,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,755.96 : 398,635.38 = 66,076.35 : x
  2. Step 2: Convert to fraction form
    265,755.96/398,635.38 = 66,076.35/x
  3. Step 3: Cross multiply
    265,755.96x = 398,635.38 × 66,076.35
  4. Step 4: Simplify right side
    265,755.96x = 26,340,370,891.26
  5. Step 5: Solve for x
    x = 26,340,370,891.26/265,755.96
  6. Step 6: Final answer
    x = 99,114.88

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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.