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Finding the Fourth Proportional to 203,166.59, 280,372.26 and 112,524.30

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Solution

The fourth proportional to 203,166.59, 280,372.26 and 112,524.30 is: 155,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,166.59 : 280,372.26 = 112,524.30 : x
  2. Step 2: Convert to fraction form
    203,166.59/280,372.26 = 112,524.30/x
  3. Step 3: Cross multiply
    203,166.59x = 280,372.26 × 112,524.30
  4. Step 4: Simplify right side
    203,166.59x = 31,548,692,295.92
  5. Step 5: Solve for x
    x = 31,548,692,295.92/203,166.59
  6. Step 6: Final answer
    x = 155,284.85

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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.