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Finding the Fourth Proportional to 150,542.73, 207,758.17 and 86,884.63

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Solution

The fourth proportional to 150,542.73, 207,758.17 and 86,884.63 is: 119,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,542.73 : 207,758.17 = 86,884.63 : x
  2. Step 2: Convert to fraction form
    150,542.73/207,758.17 = 86,884.63/x
  3. Step 3: Cross multiply
    150,542.73x = 207,758.17 × 86,884.63
  4. Step 4: Simplify right side
    150,542.73x = 18,050,991,729.93
  5. Step 5: Solve for x
    x = 18,050,991,729.93/150,542.73
  6. Step 6: Final answer
    x = 119,906.10

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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.