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Finding the Fourth Proportional to 208,556.52, 287,806.24 and 113,060.76

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Solution

The fourth proportional to 208,556.52, 287,806.24 and 113,060.76 is: 156,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,556.52 : 287,806.24 = 113,060.76 : x
  2. Step 2: Convert to fraction form
    208,556.52/287,806.24 = 113,060.76/x
  3. Step 3: Cross multiply
    208,556.52x = 287,806.24 × 113,060.76
  4. Step 4: Simplify right side
    208,556.52x = 32,539,592,227.14
  5. Step 5: Solve for x
    x = 32,539,592,227.14/208,556.52
  6. Step 6: Final answer
    x = 156,022.90

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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.