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Finding the Fourth Proportional to 150,073.56, 207,075.78 and 89,668.44

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Solution

The fourth proportional to 150,073.56, 207,075.78 and 89,668.44 is: 123,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,073.56 : 207,075.78 = 89,668.44 : x
  2. Step 2: Convert to fraction form
    150,073.56/207,075.78 = 89,668.44/x
  3. Step 3: Cross multiply
    150,073.56x = 207,075.78 × 89,668.44
  4. Step 4: Simplify right side
    150,073.56x = 18,568,162,154.38
  5. Step 5: Solve for x
    x = 18,568,162,154.38/150,073.56
  6. Step 6: Final answer
    x = 123,727.07

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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.