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Finding the Fourth Proportional to 265,992.28, 398,984.10 and 125,851.48

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Solution

The fourth proportional to 265,992.28, 398,984.10 and 125,851.48 is: 188,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,992.28 : 398,984.10 = 125,851.48 : x
  2. Step 2: Convert to fraction form
    265,992.28/398,984.10 = 125,851.48/x
  3. Step 3: Cross multiply
    265,992.28x = 398,984.10 × 125,851.48
  4. Step 4: Simplify right side
    265,992.28x = 50,212,739,481.47
  5. Step 5: Solve for x
    x = 50,212,739,481.47/265,992.28
  6. Step 6: Final answer
    x = 188,775.18

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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.