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Finding the Fourth Proportional to 265,791.06, 398,686.59 and 125,563.86

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Solution

The fourth proportional to 265,791.06, 398,686.59 and 125,563.86 is: 188,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,791.06 : 398,686.59 = 125,563.86 : x
  2. Step 2: Convert to fraction form
    265,791.06/398,686.59 = 125,563.86/x
  3. Step 3: Cross multiply
    265,791.06x = 398,686.59 × 125,563.86
  4. Step 4: Simplify right side
    265,791.06x = 50,060,627,170.64
  5. Step 5: Solve for x
    x = 50,060,627,170.64/265,791.06
  6. Step 6: Final answer
    x = 188,345.79

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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.