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Finding the Fourth Proportional to 200,489.19, 300,545.42 and 67,276.03

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Solution

The fourth proportional to 200,489.19, 300,545.42 and 67,276.03 is: 100,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,489.19 : 300,545.42 = 67,276.03 : x
  2. Step 2: Convert to fraction form
    200,489.19/300,545.42 = 67,276.03/x
  3. Step 3: Cross multiply
    200,489.19x = 300,545.42 × 67,276.03
  4. Step 4: Simplify right side
    200,489.19x = 20,219,502,692.28
  5. Step 5: Solve for x
    x = 20,219,502,692.28/200,489.19
  6. Step 6: Final answer
    x = 100,850.84

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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.