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Finding the Fourth Proportional to 200,713.20, 300,814.65 and 82,250.70

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Solution

The fourth proportional to 200,713.20, 300,814.65 and 82,250.70 is: 123,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,713.20 : 300,814.65 = 82,250.70 : x
  2. Step 2: Convert to fraction form
    200,713.20/300,814.65 = 82,250.70/x
  3. Step 3: Cross multiply
    200,713.20x = 300,814.65 × 82,250.70
  4. Step 4: Simplify right side
    200,713.20x = 24,742,215,532.76
  5. Step 5: Solve for x
    x = 24,742,215,532.76/200,713.20
  6. Step 6: Final answer
    x = 123,271.49

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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.