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Finding the Fourth Proportional to 203,339.52, 280,600.89 and 112,697.03

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Solution

The fourth proportional to 203,339.52, 280,600.89 and 112,697.03 is: 155,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,339.52 : 280,600.89 = 112,697.03 : x
  2. Step 2: Convert to fraction form
    203,339.52/280,600.89 = 112,697.03/x
  3. Step 3: Cross multiply
    203,339.52x = 280,600.89 × 112,697.03
  4. Step 4: Simplify right side
    203,339.52x = 31,622,886,918.36
  5. Step 5: Solve for x
    x = 31,622,886,918.36/203,339.52
  6. Step 6: Final answer
    x = 155,517.66

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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.