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Finding the Fourth Proportional to 203,373.21, 280,560.11 and 127,963.29

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Solution

The fourth proportional to 203,373.21, 280,560.11 and 127,963.29 is: 176,529.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,373.21 : 280,560.11 = 127,963.29 : x
  2. Step 2: Convert to fraction form
    203,373.21/280,560.11 = 127,963.29/x
  3. Step 3: Cross multiply
    203,373.21x = 280,560.11 × 127,963.29
  4. Step 4: Simplify right side
    203,373.21x = 35,901,394,078.55
  5. Step 5: Solve for x
    x = 35,901,394,078.55/203,373.21
  6. Step 6: Final answer
    x = 176,529.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.