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Finding the Fourth Proportional to 265,736.70, 398,712.57 and 107,924.22

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Solution

The fourth proportional to 265,736.70, 398,712.57 and 107,924.22 is: 161,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,736.70 : 398,712.57 = 107,924.22 : x
  2. Step 2: Convert to fraction form
    265,736.70/398,712.57 = 107,924.22/x
  3. Step 3: Cross multiply
    265,736.70x = 398,712.57 × 107,924.22
  4. Step 4: Simplify right side
    265,736.70x = 43,030,743,121.45
  5. Step 5: Solve for x
    x = 43,030,743,121.45/265,736.70
  6. Step 6: Final answer
    x = 161,930.00

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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.