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Finding the Fourth Proportional to 203,141.54, 280,336.11 and 112,495.52

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Solution

The fourth proportional to 203,141.54, 280,336.11 and 112,495.52 is: 155,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,141.54 : 280,336.11 = 112,495.52 : x
  2. Step 2: Convert to fraction form
    203,141.54/280,336.11 = 112,495.52/x
  3. Step 3: Cross multiply
    203,141.54x = 280,336.11 × 112,495.52
  4. Step 4: Simplify right side
    203,141.54x = 31,536,556,469.23
  5. Step 5: Solve for x
    x = 31,536,556,469.23/203,141.54
  6. Step 6: Final answer
    x = 155,244.25

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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.