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Finding the Fourth Proportional to 259,276.44, 388,633.44 and 132,743.16

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Solution

The fourth proportional to 259,276.44, 388,633.44 and 132,743.16 is: 198,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,276.44 : 388,633.44 = 132,743.16 : x
  2. Step 2: Convert to fraction form
    259,276.44/388,633.44 = 132,743.16/x
  3. Step 3: Cross multiply
    259,276.44x = 388,633.44 × 132,743.16
  4. Step 4: Simplify right side
    259,276.44x = 51,588,430,907.27
  5. Step 5: Solve for x
    x = 51,588,430,907.27/259,276.44
  6. Step 6: Final answer
    x = 198,970.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.