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Finding the Fourth Proportional to 203,058.32, 280,229.64 and 113,634.32

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Solution

The fourth proportional to 203,058.32, 280,229.64 and 113,634.32 is: 156,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,058.32 : 280,229.64 = 113,634.32 : x
  2. Step 2: Convert to fraction form
    203,058.32/280,229.64 = 113,634.32/x
  3. Step 3: Cross multiply
    203,058.32x = 280,229.64 × 113,634.32
  4. Step 4: Simplify right side
    203,058.32x = 31,843,704,585.24
  5. Step 5: Solve for x
    x = 31,843,704,585.24/203,058.32
  6. Step 6: Final answer
    x = 156,820.49

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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.