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Finding the Fourth Proportional to 186,843.40, 280,232.70 and 68,453.80

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Solution

The fourth proportional to 186,843.40, 280,232.70 and 68,453.80 is: 102,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,843.40 : 280,232.70 = 68,453.80 : x
  2. Step 2: Convert to fraction form
    186,843.40/280,232.70 = 68,453.80/x
  3. Step 3: Cross multiply
    186,843.40x = 280,232.70 × 68,453.80
  4. Step 4: Simplify right side
    186,843.40x = 19,182,993,199.26
  5. Step 5: Solve for x
    x = 19,182,993,199.26/186,843.40
  6. Step 6: Final answer
    x = 102,668.83

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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.